Pentair 474845 3 inch PVC direct air intake duct kit for MasterTemp 125 heaterPentair 474845 3" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater In stock$24799
Pentair 474845 3 inch PVC direct air intake duct kit for MasterTemp 125 heater
Shop all Pentair

Pentair 474845 3" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater

Ask a questionMPN 474845
$24799
FREE Delivery
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Pentair Factory kit, part number 474845.
  • MasterTemp 125 only Sized for the 125 model, not the larger MasterTemp heaters.
  • 3 inch PVC duct Uses 3" PVC for the intake run.
  • Direct air intake Brings combustion air to the heater from outside the equipment space rather than from the room around it.
  • Supplied as a kit The intake duct parts come together rather than sourced piece by piece.
  • Made for enclosed installs The usual reason to fit one is a heater in a room or enclosure where room air is not an acceptable supply.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Pentair 474845 3" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater, SKU PUR-151-1032. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Pentair 474845 3" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater
Pentair

474845 3" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater

$24799
Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Pentair

Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z

$53899
Pentair MasterTemp 125 Manifold Kit, 474972
Pentair

MasterTemp 125 Manifold Kit, 474972

$28399
Pentair Tube Sheet Coil Assembly Kit for 250NA 250LP MasterTemp Heater, 474059
Pentair

Tube Sheet Coil Assembly Kit for 250NA 250LP MasterTemp Heater, 474059

$93499
Pentair Flame Holder Kit for MasterTemp Model 125 Heater Burner System, 474994
Pentair

Flame Holder Kit for MasterTemp Model 125 Heater Burner System, 474994

$15199
Pentair MasterTemp Max-E-Therm Ignition Control Module Replacement Kit, 476223Z
Pentair

MasterTemp Max-E-Therm Ignition Control Module Replacement Kit, 476223Z

$32099
Sta-Rite Tube Sheet Coil Assembly Kit for Model 400NA, 400LP MasterTemp Heater, 474061
Pentair

Sta-Rite Tube Sheet Coil Assembly Kit for Model 400NA, 400LP MasterTemp Heater, 474061

$1,22199
Subtotal

Similar products

Other products people compare with this one.

Pentair 461031 MasterTemp direct air intake duct kit Pentair MasterTemp Heater Direct Air Intake Duct Kit, 461031$24599 Pentair 42002-0033Z manifold side panel for MasterTemp pool heaters Pentair Manifold Side Panel for MasterTemp Heater, 42002-0033Z$32999 Pentair 474200 MasterTemp basic manifold kit Pentair MasterTemp Basic Manifold Kit, 474200$18399 Pentair 461107 MasterTemp and Max-E-Therm wire harness replacement kit Pentair MasterTemp Max-E-Therm Wiring Harness, 461107$30099 Pentair 472610Z MasterTemp switch membrane pad for the heater electrical system Pentair MasterTemp Switch Membrane Pad, 472610Z$13499 42002-0034Z MasterTemp gas pool heater top cover Sta-Rite MasterTemp Heater Top, 42002-0034Z$31699 Pentair 473715Z 50 PSI pressure relief valve for MasterTemp and Max-E-Therm heaters Pentair MasterTemp Pressure Relief Valve 50 PSI, 473715Z$14899 Pentair 474978 air blower kit for the MasterTemp 125 natural gas heater Pentair Air Blower Kit for MasterTemp 125 Natural Gas Heater, 474978$64299 Pentair 461063 natural gas to propane conversion kit for MasterTemp 125 heater Pentair Natural Gas to Propane Conversion Kit for 125 MasterTemp Heater, 461063$6499 Pentair 474974 MasterTemp 1-1/2 inch heater union kit Pentair Union 1.5" Kit for MasterTemp 125, 474974$7099
Pentair 474989 thermal regulator for MasterTemp Model 125 heater water system Pentair Thermal Regulator for MasterTemp 125 Heater Water System, 474989$5999 Pentair 474952 combustion chamber o-ring kit for MasterTemp 125 heater Pentair Combustion Chamber O-Ring Kit for MasterTemp 125, 474952$4999 Pentair 77707-0120 manifold o-ring kit for Max-E-Therm and MasterTemp heaters Pentair Manifold O-Ring Kit for Max-E-Therm and MasterTemp Heater Burner System, 77707-0120$2999 Pentair 42001-0105S voltage selector plug kit for Max-E-Therm heaters Pentair Voltage Selector Plug Kit for Max-E-Therm Heater Electrical System 120/240 V, 42001-0105S$5499 Pentair 474058 cupro nickel tube sheet coil assembly kit for MasterTemp 175 and 200 heaters Pentair Tube Sheet Coil Assembly Kit Cupro Nickel, for MasterTemp 175NA-200LP, 474058$77299 Pentair 474060 cupro nickel tube sheet coil assembly kit for MasterTemp 300NA and 300LP heaters Pentair Tube Sheet Coil Assembly Kit, Cupro Nickel, for MasterTemp 300NA and 300LP, 474060$1,05399 Pentair 474065 cupro nickel tube sheet coil assembly kit for MasterTemp 400 heaters Pentair Cupro Nickel Tube Sheet Coil Assembly Kit for MasterTemp 400HDNA, 400HD-LP, 474065$1,94499 Pentair MasterTemp and Sta-Rite Max-E-Therm Gas Conversion Kit | 77707-1461 Pentair MasterTemp and Sta-Rite Max-E-Therm Gas Conversion Kit | 77707-1461$5799 Pentair MasterTemp Gas Conversion Kit Natural Gas to Propane | 460741 Pentair MasterTemp Gas Conversion Kit Natural Gas to Propane | 460741$5399 Pentair MasterTemp Gas Conversion Kit Propane to Natural Gas | 460742 Pentair MasterTemp Gas Conversion Kit Propane to Natural Gas | 460742$5399

Product details

The Pentair 474845 is the direct air intake duct kit for the MasterTemp 125 pool heater. It is the genuine Pentair kit and it uses 3" PVC for the intake run.

What it does

A gas heater needs a steady supply of combustion air. In an open outdoor install the heater takes that air from around it. Where the heater sits inside a room, a shed or a tight enclosure, a direct air intake kit ducts the air in from outside instead, so the heater is not competing with the space it is standing in.

Check the model first

This kit is specific to the MasterTemp 125. Larger MasterTemp heaters use their own intake parts, so confirm the model number on the heater data plate before ordering.

Specifications
Brand Pentair
Manufacturer part number 474845
UPC 788379865450
Type Direct air intake duct kit
Duct size 3" PVC
Fits Pentair MasterTemp 125 heater
Shipping weight 8 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

From Pentair

Your trusted source for all things pool. Pentair

Pentair equipment

Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001 Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301 Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Shop Pentair equipment

Genuine Pentair parts

Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198 Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800 Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400 Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Shop Pentair parts
Pool lighting: a backyard pool and spa lit in blue and green at nightPool water treatment: three people floating on rings in clear blue water, seen from abovePool cleaners: a toddler in flower sunglasses laughing in a yellow ring, held by her mother
Pentair makes pumps, filters, heaters, salt chlorinators, cleaners, lighting and automation for pools and spas.Shop all Pentair

Customer reviews

More from Pentair

Pentair SuperFlo VS EC-342001 1.5 HP variable speed pool pump, front view Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001$1,48900 Pentair SuperFlo EC-348190 single speed pool pump, 1 HP, 115/230V Pentair SuperFlo 1 HP Single Speed Pool Pump, 115/230V, EC-348190$74800 Pentair WhisperFlo VS EC-011533 2.6 THP variable speed pool pump, top view Pentair WhisperFlo VS 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900 Pentair 262506 HiFlow 1.5 in. six way clamp style multiport valve Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20399 Pentair EC-520556 IntelliChlor 110/220V power center Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900 Web Price Pentair 523769 IntelliChlor Plus and LT replacement sensor board Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$39299 Pentair 350305S 3.2 kW 10 pole variable speed motor for IntelliFloXF and IntelliFlo 2 VST pumps Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199 Pentair 523735-EC IntelliChlor Plus40 salt chlorine generator cell Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900 Web Price Pentair Rainbow 320 in-line chlorinator R171096, front view Pentair Rainbow 320 In-Line Chlorinator, R171096$14499 Pentair 190003 tank clamp kit with tension control for Clean and Clear Plus, FNS Plus and Quad DE filters Pentair Genuine OEM Clamp Kit with Tension Control, 190003$30199
Pentair IntelliChlor LT25 salt chlorine generator cell 523747-EC Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,14900 Pentair IntelliFlo VS+SVRS variable speed pool pump, EC-011057 Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, EC-011057$2,39900 Pentair 170145 cartridge pack for Sta-Rite System 3 S7M120, inner and outer cartridges Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$46499 Pentair 261055 SM-20-3 2 in. side mount multiport valve kit, front view Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$29999 Pentair 523770 IntelliChlor Plus replacement controller (HMI), black Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$38399 Pentair 261152 SM20-2 2 in. side mount multiport valve kit for DE filters Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$29799 Pentair 357149 WhisperFlo and IntelliFlo volute housing replacement kit, front view Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$28799 Pentair MicroBrite Color LED pool light EC-620425, 12 volt, 14 watt, with 100 ft cord Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900 Pentair 59023400 FNS Plus 48 sq ft complete DE grid assembly Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$39399 Pentair Amerlite EC-602128 500W 120V inground pool light with stainless steel facering Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900 Web Price

Questions and answers

What people ask about this product, answered by our pool techs.

Will this fit any MasterTemp?
No. This kit is for the MasterTemp 125. The larger MasterTemp models take different intake parts.
What pipe size does it use?
3" PVC.
What is a direct air intake kit for?
It ducts combustion air to the heater from outside the space it sits in, instead of pulling air from the room.
Is it a genuine Pentair kit?
Yes. It is Pentair part number 474845.
Ask your own question