Sta-Rite Max-E-Therm 400 HD High Performance Heater, Natural Gas, 400K BTU, 120/240 VAC, 60 Hz, 127 lbs | SR400HD

Name: Pool Supply Depot Sta-Rite Max-E-Therm 400 HD High Performance Heater, Natural Gas, 400K BTU, 120/240 VAC, 60 Hz, 127 lbs | SR400HD - Sta-Rite Max-E-Therm 400 HD High Performance Heater, Natural Gas, 400K BTU, 120/240 VAC, 60 Hz, 127 lbs | SR400HD
Brand: Pool Supply Depot
SKU: 51731362283830
Price: 4399.0 USD
Availability: InStock
Rating: 5 (1 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$4,399.00

Quantity

Color

Black

Quantity

Cupro-nickel heat exchanger resists corrosion and rust for extended durability
LED temperature readout with dual thermostat controls for precise temperature management
Temperature safety lockout prevents overheating for added safety
6-position control panel allows easy adjustment of heater output
Smart connectivity via Pentair iCenter enables remote monitoring and control

Summarized by Shop

5.0

1 rating

went great!

Tom · August 2, 2026

Returns accepted within 30 days

Exclusions may apply. See full policy

Pool Supply Depot

4.8 (615)

Product description loading

This is the product description text that will appear here.

Pool Supply Depot

Sta-Rite Max-E-Therm 400k BTU Natural Gas Heater | SR400NA

(6)

$3,950.00

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool Heater, Cupronickel, SR400HD, 400K BTU

$4,649.00

Exclusive offer available

PoolSupply 4U

Pentair MasterTemp 400K BTU Natural Gas Pool & Spa Heater 460736 – High-Performance Heating

$3,739.00$4,405.00

Exclusive offer available

PoolSupply 4U

Pentair Sta-Rite Max-E-Thermostat 400K BTU Heater SR400NA – Natural Gas Pool & Spa Heating

(1)

$3,999.00$4,560.00

Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU

4% off

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM - SR200NA

$3,249.00$3,399.00

Pool Supply Depot

Pentair Heat Exchanger 400K Hd Heaters | 474065

$1,769.95

Pool Guy Supply

4.8

(2.1K)

AppaeTech Pool Supply

Pentair | 145241 | Tagelus TA 60D Top Mount Sand Filter – 24.5" Tank, 60 GPM, 43,200 Gal Capacity

$783.99

Pool Supply Depot

Pentair Combination Gas Control Valve Kit Mastertemp and Max-E-Therm | 42001-0051S

$379.98

28% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR333NA Natural Gas Heater

$3,839.00$5,323.00

28% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR200NA

$3,249.00$4,504.00

Poolweb

SR/SRC400 Manifold Conversion Kit

(5)

$593.44

19% off

Pool Plaza

Sta-Rite Max-E-Therm, 200,000 BTU, Natural Gas Heater (SR200NA)

$3,249.00$3,999.00

Jandy JXiQ ASME Natural Gas Heater 400K BTU | JXIQ400NS - product image 1

Pool Supply Depot

Jandy JXiQ ASME Natural Gas Heater, 400K BTU, Cupronickel Exchanger | JXIQ400NS

$4,899.00

StaRite Pentair Max-E-Therm 400 ASME Natural Gas, ASME, 400K BTU, 120/240 Vacuum

Pool Supply 4 Less

Sta-Rite Pentair Max-E-Therm 400 ASME Natural Gas, ASME, 400K BTU, 120/240 VAC - 460763

$4,999.00

Sta-Rite Max-E-Therm 400 Propane Heater 400K BTU | SR400LP - product image 1

Pool Supply Depot

Sta-Rite Max-E-Therm 400 High Performance Pool & Spa Heater, Propane Gas, 400K BTU, 120/240 VAC, 60 Hz | SR400LP

$4,199.00

PureFilters

Pentair STA-15-500 Max-E-Therm® 200 Natural Gas Pool & Spa Heater 200K BTU

$3,628.00

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater Cupro-Nickel - SR400HD

$4,049.00

The Bottom Feeder

4.8

(208)

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR400HD Natural Gas Heater

(1)

$4,049.00

Pentair MasterTemp 250 Natural Gas Heater 250K BTU | EC-462026 - product image 1

Pool Supply Depot

Pentair MasterTemp 250 High Performance Pool & Spa Heater 250,000 BTUs, Natural Gas | EC-462026

$3,739.00

24% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR400NA Natural Gas Heater

$3,949.00$5,186.00

Pentair | 360486 | Rebel Head V2 with 11 Hoses & 1 Leader Hose (Model 777047) Pentair

AppaeTech Pool Supply

Appaetech Assembled kit | 360486 | Rebel Head V2 with 11 Hoses & 1 Leader Hose (Model 777047)

(3)

$339.00

Pool Supply Depot

Hayward Universal H-Series Natural Gas Heater, 200K BTU | W3H200FDN

$3,699.00

StaRite Pool Heater MAX-E-THERM SR400LP Heater

27% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR400LP Propane

$3,899.00$5,323.00

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 333 Natural Gas Heater, SR333NA

$4,499.00

Exclusive offer available

PoolSupply 4U

Pentair 42002-0024S Stack Flue Sensor – Replacement for Sta-Rite MasterTemp & Max-E-Thermostat Heaters

$75.00$87.00

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 200 Propane Gas Heater, SR200LP

$3,799.00

ePoolSupply

4.8

(1K)

EZ Chlor 50-pound bucket of 3-inch chlorine tablets on a white background

A&A Gamma Series 3&4 Pop Up Head Collar - Displaying 6 Color Rings

A&A Gamma 2 Series adjustable flow white pop-up head with spring base.

Light gray A&A Gamma Series 4 adjustable flow pop-up head with spring and white base seal.

Pentair SR400NA Sta-Rite Max-E-Therm 400K BTU Heater – Natural Gas Pool & Spa Heating

Exclusive offer available

Pool Supply Harbor

Pentair SR400NA Sta-Rite Max-E-Therm 400K BTU Heater – Natural Gas Pool & Spa Heating

$3,947.01$4,198.95

Aqua Pool Supply

4.8

(172)

Hayward 6 Port Module with Valve Shell O - Ring 004302440800 - In Floor Cleaning System Valve Parts - img - 1

Pentair IntelliChlor Plus40 Salt Chlorine Generator Cell 40k Gallons 523735 - Salt Chlorine Generation - img - 1

King Tech New Water 407C Chlorine Cycler Pac, 3/Case | 01 - 03 - 4613 - NewWater - img - 1

Caretaker 99 (Jandy In-Floor) High Flow Cleaning Head Bright White 4-9-566 - Pop-Up Heads - img-1

Exclusive offer available

PoolSupply 4U

Pentair MasterTemp 250K BTU Natural Gas Pool & Spa Heater 460732 – High-Performance Heating

$3,137.99$3,620.00

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 400 Natural Gas Heater, SR400NA, 400K BTU

$4,599.00

Pentair | 461113 | ETi 400 High-Efficiency Pool Heater – 400,000 BTU, Natural Gas, Titanium Heat Exchanger Pentair

AppaeTech Pool Supply

Pentair | 461113 | ETi 400 High-Efficiency Natural Gas Pool Heater, 400K BTU, Titanium Heat Exchanger

(1)

$9,499.00

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Propane - SR400LP

$3,899.00

Pool Guy Supply

Pentair® Sta-Rite® Thermal Regulator Kit

(2)

$124.99

2% off

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR333NA

$3,829.00$3,899.00

AppaeTech Pool Supply

Appaetech Industries High Flow Air Relief Valve – Replacement Part for Most Pentair Filters (Replaces 98209803 & 98209800)

$22.00

Pool Supply Depot

Hayward Universal H-Series Natural Gas Heater 250K BTU | W3H250FDN

$3,999.00

3% off

Pool Plaza

Sta-Rite Max-E-Therm 400,000 BTU, Natural Gas, w/Cupro Nickel Headers (SR400HD)

(1)

$4,079.00$4,199.00

WaterGuru

4.6

(609)

PoolCleaningParts.com

Sta-Rite Max-E-Therm Pool Heater 333K BTU - Natural Gas

$3,999.99

Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas HD 460805

7% off

Pool Supply 4 Less

Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas HD - 460805

$3,979.00$4,299.00

Hayward Universal H-Series Propane Heater 150K BTU | W3H150FDP - product image 1

Pool Supply Depot

Hayward Universal H-Series Propane Gas Heater 150,000 BTUs, Low NOx | W3H150FDP

$2,999.00

Pool Plaza

Sta-Rite Max-E-Therm, 333,000 BTU, Propane Gas (SR333LP)

$3,899.00

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR400NA

$3,899.00

Pool Pumps

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 400 Propane Gas Heater, SR400LP, 400K BTU

$4,599.00

Pentair | 24851-0103S | 25 In Bottom Tank Half Kit | System 3 Filter Pentair

4% off

AppaeTech Pool Supply

Pentair | 24851-0103S | 25 In Bottom Tank Half Kit | System 3 Filter

$963.81$1,000.88

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 333 Propane Gas Heater, SR333LP

$4,299.00

Shasta Pool Supply

Sta-Rite Thermal Regulator Kit 77707-0010

$78.95

PoolCleaningParts.com

Sta-Rite Max-E-Therm Pool Heater 400K BTU - Propane

$3,999.99

Hayward Universal H-Series Propane Heater 400K BTU | W3H400FDP - product image 1

Pool Supply Depot

Hayward Universal H-Series Propane Gas Heater 400,000 BTUs | W3H400FDP

$5,099.00

Pool Supply Depot

Pentair 42002-0024S. Strack Flue Sensor for Sta-Rite MasterTemp MaxE-Therm. Replacement Part

$109.99

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 333 HD Natural Gas Heater, Cupronickel, SR333HD

$4,799.00

StaRite Pool Heater MAX-E-THERM SR333LP Propane Heater

28% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR333LP Propane Heater

$3,839.00$5,323.00

For the grill master

Kitchen staples that elevate dad’s culinary skills

AppaeTech Pool Supply

Pentair | 640122 | IntelliBrite 5G Color LED Spa Light – 18W, 120V, 100 ft Cord

$899.00

Raypak AVIA Natural Gas Pool Heater 399K BTU | 018033 - product image 1

Pool Supply Depot

Raypak P-R404A-EN-C Low NOx Avia Natural Gas Heater, 399K BTU, Polymer Headers, Copper Exchanger, 135 lbs, 3/4” NPT, 2” Buttress, Built-in Wi-Fi | 018033

$4,200.00

Pool Supply Depot

Paramount Ultra UV2 Water Sanitizer, 230V - Hard Wire, 2 UV-C Lamp | 004422202600

$999.00

Pentair Sta-Rite Max-E-Therm 400 HD natural gas pool and spa heater

17% off

ePoolSupply

Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool & Spa Heater | SR400HD

$4,130.95$4,999.99

Pool Supply Depot

Pentair MasterTemp/Sta-Rite Pool Heater High Limit Switch | 42001-0063S

$59.99

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR333HD

$3,949.00

Pentair | 24850-0102S | 21 In Bottom Tank Half Kit | System 3 Filter Pentair

4% off

AppaeTech Pool Supply

Pentair | 24850-0102S | 21 In Bottom Tank Half Kit | System 3 Filter

$853.02$885.83

Pool Plaza

Sta-Rite Max-E-Therm, 400,000 BTU, Natural Gas (SR400NA)

$3,899.00$3,900.00

Living room glow up

Chic lighting, side tables, and linen layers.

4% off

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Propane Heater - SR200LP

$3,279.00$3,399.00

Pool Supply Depot

Hayward Universal H-Series Natural Gas Heater 400K BTU | W3H400FDN

$5,099.00

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM - SR200HD

$3,429.00

28% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR200HD

$3,449.00$4,777.00

Pentair MasterTemp 400 Natural Gas Heater 400K BTU | EC-462028 - product image 1

Pool Supply Depot

Pentair MasterTemp 400K High Performance Pool & Spa Heater Natural Gas | EC-462028

$4,789.00

2% off

Pool Supply 4 Less

Sta-Rite Pool Heater MAX-E-THERM Propane Heater - SR333LP

$3,829.00$3,899.00

Pentair | 640132 | IntelliBrite 5G Color LED Spa Light – 12V, 100 ft Cord, TradeGrade Pentair

10% off

AppaeTech Pool Supply

Pentair | 640132 | IntelliBrite 5G Color LED Spa Light – 12V, 100 ft Cord, TradeGrade

$899.00$999.00

Pool Supply Depot

Pentair Sta-Rite Max-E-Therm 200 Propane Gas Heater | SR200LP

$3,299.00

Pool Plaza

Sta-Rite Max-E-Therm, 333,000 BTU, Natural Gas (SR333NA)

$3,899.00

PoolCleaningParts.com

Sta-Rite Max-E-Therm Pool Heater 400K BTU - Natural Gas

(2)

$3,999.99

Pentair MasterTemp 400 Propane Heater 400K BTU | EC-462029 - product image 1

Pool Supply Depot

Pentair MasterTemp 400 High Performance Pool & Spa Heater 400,000 BTUs, Propane | EC-462029

$4,789.00

Pool Supply Depot

Pentair NATURAL GAS To LIQUID PROPANE 400K Conversion Kit | 77707-1441

$74.95

Pool Supply Depot

Pentair IntelliCenter i8PS Pool/Spa with 2 IntelliValves, WiFi Link Kit, and Load Center Bundle | 521904

(1)

$3,299.00

28% off

Swimming Pool Supply USA

StaRite Pool Heater MAX-E-THERM SR333HD Natural Gas Heater

$3,949.00$5,459.00

Exclusive offer available

PoolSupply 4U

Pentair Sta-Rite Max-E-Thermostat 200K BTU Heater SR200NA – Natural Gas Pool & Spa Heating

$3,445.99$3,975.00

Exclusive offer available

Vita Pool Supply

Pentair Sta-Rite Max-E-Therm 200 Natural Gas Heater, SR200NA

$3,599.00

Pool Supply Depot

Hayward Universal H-Series 400,000 BTU Natural Gas Pool & Spa Heater | H400FDN

(2)

$3,899.00

Bar cart basics

Carts, glassware, and bottle storage.

15% off

Pool Plaza

Sta-Rite Max-E-Therm, 400,000 BTU, Propane Gas (SR400LP)

$3,899.00$4,599.00

Shasta Pool Supply

Pentair Sta-Rite 42002-0029Z | Max-E-Therm Electrical System

$95.95

PoolCleaningParts.com

Sta-Rite Max-E-Therm Pool Heater 333K BTU - Propane

$3,999.99

Pool Supply Depot

Pentair MasterTemp and Max-E-Therm 175K Natural Gas to Propane Conversion Kit | 460794

$74.99

Hayward Universal H-Series Natural Gas Heater 250K BTU | H250FDN - product image 1

7% off

Pool Supply Depot

Hayward Universal H-Series 250K BTU Natural Gas Heater | H250FDN

(1)

$3,249.99$3,499.00

18% off

Pool Plaza

Sta-Rite Max-E-Therm, 200,000 BTU, Propane Gas Heater (SR200LP)

$3,279.00$3,999.00

Sta-Rite Max-E-Therm 400 HD High Performance Heater, Natural Gas, 400K BTU, 120/240 VAC, 60 Hz, 127 lbs | SR400HD

Highlights

Description

Specifications

Reviews5.0(1)

Delivery & Returns

Pool Supply Depot

You might also like

Sta-Rite Max-E-Therm 400k BTU Natural Gas Heater | SR400NA

Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool Heater, Cupronickel, SR400HD, 400K BTU

Pentair MasterTemp 400K BTU Natural Gas Pool & Spa Heater 460736 – High-Performance Heating

Pentair Sta-Rite Max-E-Thermostat 400K BTU Heater SR400NA – Natural Gas Pool & Spa Heating

Sta-Rite Pool Heater MAX-E-THERM - SR200NA

Pentair Heat Exchanger 400K Hd Heaters | 474065

Pool Guy Supply

Pentair | 145241 | Tagelus TA 60D Top Mount Sand Filter – 24.5" Tank, 60 GPM, 43,200 Gal Capacity

Pentair Combination Gas Control Valve Kit Mastertemp and Max-E-Therm | 42001-0051S

StaRite Pool Heater MAX-E-THERM SR333NA Natural Gas Heater

StaRite Pool Heater MAX-E-THERM SR200NA

SR/SRC400 Manifold Conversion Kit

Sta-Rite Max-E-Therm, 200,000 BTU, Natural Gas Heater (SR200NA)

Jandy JXiQ ASME Natural Gas Heater, 400K BTU, Cupronickel Exchanger | JXIQ400NS

Sta-Rite Pentair Max-E-Therm 400 ASME Natural Gas, ASME, 400K BTU, 120/240 VAC - 460763

Sta-Rite Max-E-Therm 400 High Performance Pool & Spa Heater, Propane Gas, 400K BTU, 120/240 VAC, 60 Hz | SR400LP

Pentair STA-15-500 Max-E-Therm® 200 Natural Gas Pool & Spa Heater 200K BTU

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater Cupro-Nickel - SR400HD

The Bottom Feeder

StaRite Pool Heater MAX-E-THERM SR400HD Natural Gas Heater

Pentair MasterTemp 250 High Performance Pool & Spa Heater 250,000 BTUs, Natural Gas | EC-462026

StaRite Pool Heater MAX-E-THERM SR400NA Natural Gas Heater

Appaetech Assembled kit | 360486 | Rebel Head V2 with 11 Hoses & 1 Leader Hose (Model 777047)

Hayward Universal H-Series Natural Gas Heater, 200K BTU | W3H200FDN

StaRite Pool Heater MAX-E-THERM SR400LP Propane

Pentair Sta-Rite Max-E-Therm 333 Natural Gas Heater, SR333NA

Pentair 42002-0024S Stack Flue Sensor – Replacement for Sta-Rite MasterTemp & Max-E-Thermostat Heaters

Pentair Sta-Rite Max-E-Therm 200 Propane Gas Heater, SR200LP

ePoolSupply

Pentair SR400NA Sta-Rite Max-E-Therm 400K BTU Heater – Natural Gas Pool & Spa Heating

Aqua Pool Supply

Pentair MasterTemp 250K BTU Natural Gas Pool & Spa Heater 460732 – High-Performance Heating

Pentair Sta-Rite Max-E-Therm 400 Natural Gas Heater, SR400NA, 400K BTU

Pentair | 461113 | ETi 400 High-Efficiency Natural Gas Pool Heater, 400K BTU, Titanium Heat Exchanger

Sta-Rite Pool Heater MAX-E-THERM Propane - SR400LP

Pentair® Sta-Rite® Thermal Regulator Kit

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR333NA

Appaetech Industries High Flow Air Relief Valve – Replacement Part for Most Pentair Filters (Replaces 98209803 & 98209800)

Hayward Universal H-Series Natural Gas Heater 250K BTU | W3H250FDN

Sta-Rite Max-E-Therm 400,000 BTU, Natural Gas, w/Cupro Nickel Headers (SR400HD)

WaterGuru

Sta-Rite Max-E-Therm Pool Heater 333K BTU - Natural Gas

Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas HD - 460805

Hayward Universal H-Series Propane Gas Heater 150,000 BTUs, Low NOx | W3H150FDP

Sta-Rite Max-E-Therm, 333,000 BTU, Propane Gas (SR333LP)

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR400NA

Pentair Sta-Rite Max-E-Therm 400 Propane Gas Heater, SR400LP, 400K BTU

Pentair | 24851-0103S | 25 In Bottom Tank Half Kit | System 3 Filter

Pentair Sta-Rite Max-E-Therm 333 Propane Gas Heater, SR333LP

Sta-Rite Thermal Regulator Kit 77707-0010

Sta-Rite Max-E-Therm Pool Heater 400K BTU - Propane

Hayward Universal H-Series Propane Gas Heater 400,000 BTUs | W3H400FDP

Pentair 42002-0024S. Strack Flue Sensor for Sta-Rite MasterTemp MaxE-Therm. Replacement Part

Pentair Sta-Rite Max-E-Therm 333 HD Natural Gas Heater, Cupronickel, SR333HD

StaRite Pool Heater MAX-E-THERM SR333LP Propane Heater

Pentair | 640122 | IntelliBrite 5G Color LED Spa Light – 18W, 120V, 100 ft Cord

Raypak P-R404A-EN-C Low NOx Avia Natural Gas Heater, 399K BTU, Polymer Headers, Copper Exchanger, 135 lbs, 3/4” NPT, 2” Buttress, Built-in Wi-Fi | 018033

Paramount Ultra UV2 Water Sanitizer, 230V - Hard Wire, 2 UV-C Lamp | 004422202600

Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool & Spa Heater | SR400HD

Pentair MasterTemp/Sta-Rite Pool Heater High Limit Switch | 42001-0063S

Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR333HD

Pentair | 24850-0102S | 21 In Bottom Tank Half Kit | System 3 Filter

Sta-Rite Max-E-Therm, 400,000 BTU, Natural Gas (SR400NA)

Sta-Rite Pool Heater MAX-E-THERM Propane Heater - SR200LP

Hayward Universal H-Series Natural Gas Heater 400K BTU | W3H400FDN

Sta-Rite Pool Heater MAX-E-THERM - SR200HD

StaRite Pool Heater MAX-E-THERM SR200HD

Pentair MasterTemp 400K High Performance Pool & Spa Heater Natural Gas | EC-462028

Sta-Rite Pool Heater MAX-E-THERM Propane Heater - SR333LP

Pentair | 640132 | IntelliBrite 5G Color LED Spa Light – 12V, 100 ft Cord, TradeGrade

Pentair Sta-Rite Max-E-Therm 200 Propane Gas Heater | SR200LP

Sta-Rite Max-E-Therm, 333,000 BTU, Natural Gas (SR333NA)