1 - Exhaust Grill w/Gasket (Note 1) 52010 Purex (PENTAIR) 472352 $64.45 Place Order 2 - Gasket, Exhaust Grill (Note 1) 55650 Purex (PENTAIR) 471701 $25.35 Place Order 3 - Top Cover w/Posts - Model 200 55651 Purex (PENTAIR) 472353 $308.95 Place Order 3 - Top Cover w/Posts - Model 300 55653 Purex (PENTAIR) 472355 $336.85 Place Order 4 - Exhaust Assembly - Model 200 55746 Purex (PENTAIR) 472357 $316.40 Place Order 4 - Exhaust Assembly - Model 250 55467 Purex (PENTAIR) 472358 $170.75 Place Order 4 - Exhaust Assembly - Model 300 55748 Purex (PENTAIR) 472359 4 - Exhaust Assembly - Model 400 55469 Purex (PENTAIR) 472360 6 - Gasket, Blower (Note 1) 55752 Purex (PENTAIR) 471610 $27.45 Place Order 7 - Flue Collector - Model 200 55753 Purex (PENTAIR) 472008 $1.70 Place Order 7 - Flue Collector - Model 250 30161 Purex (PENTAIR) 472007 $94.50 Place Order 7 - Flue Collector - Model 300 55755 Purex (PENTAIR) 472006 $104.60 Place Order 8 - Insulation, Header/Hi-Limit (Note 1) 55757 Purex (PENTAIR) 472270 $12.00 Place Order 9 - Return Header Assembly (Note 1) 26554 Purex (PENTAIR) 471991 $106.05 Place Order 10 - Bolt, Heat Exchanger (Note 1) 26555 Purex (PENTAIR) 471622 $2.05 Place Order 11 - Washer, Heat Exchanger (Note 1) 11649 Purex (PENTAIR) 072184 $2.05 Place Order 12 - Fire Box Assembly - Model 250 30169 Purex (PENTAIR) 471835 $437.10 Place Order 12 - Fire Box Assembly - Model 300 55672 Purex (PENTAIR) 471922 $520.40 Place Order 12 - Fire Box Assembly - Model 400 55585 Purex (PENTAIR) 472332 $581.15 Place Order 13 - Heater Exchanger w/Headers - Model 200 55674 Purex (PENTAIR) 471910 $2,365.55 Place Order 13 - Heater Exchanger w/Headers - Model 250 30705 Purex (PENTAIR) 471785 $2,481.60 Place Order 13 - Heater Exchanger w/Headers - Model 300 55676 Purex (PENTAIR) 471928 $2,632.95 Place Order 13 - Heater Exchanger w/Headers - Model 400 55768 Purex (PENTAIR) 471838 $1,465.30 Place Order 13 - Heater Exchanger w/o Headers - Model 200 55769 Purex (PENTAIR) 471933 $684.60 Place Order 13 - Heater Exchanger w/o Headers - Model 250 55679 Purex (PENTAIR) 471934 $661.10 Place Order 13 - Heater Exchanger w/o Headers - Model 300 55771 Purex (PENTAIR) 471935 $1,410.90 Place Order 13 - Heater Exchanger w/o Headers - Model 400 55681 Purex (PENTAIR) 471936 $1,773.20 Place Order 14 - Baffle, Heater Exchanger - Model 200 55773 Purex (PENTAIR) 471642 $4.70 Place Order 14 - Baffle, Heater Exchanger - Model 250 30181 Purex (PENTAIR) 471641 $4.90 Place Order 14 - Baffle, Heater Exchanger - Model 300 30182 Purex (PENTAIR) 471896 $11.50 Place Order 14 - Baffle, Heater Exchanger - Model 400 55496 Purex (PENTAIR) 471640 $8.05 Place Order 15 - Thermistor Probe (Note 1) 53272 Purex (PENTAIR) 471566 $68.60 Place Order 16 - Hi-Limit Thermostat - 115° F. (Note 1) 26611 Purex (PENTAIR) 471587 $64.75 Place Order 17 - Hi-Limit Thermostat - 150° F. (Note 1) 26618 Purex (PENTAIR) 471694 $65.95 Place Order 18 - Water Pressure Switch 81040 Pentair 473605 $98.05 Place Order 19 - In/Out Top Sub-Header Assembly (Note 1) 55602 Purex (PENTAIR) 472363 $207.75 Place Order 20 - In/Out Main Header Assembly 55603 Purex (PENTAIR) 471992 $634.35 Place Order 21 - In/Out Bottom Sub-Header (Note 1) 55783 Purex (PENTAIR) 472364 $221.10 Place Order 22 - Cap, In/Out Bottom Sub-Header (Note 1) 53260 Purex (PENTAIR) 471420 $18.00 Place Order 23 - O-Ring 25036 Standard O-83 $2.15 Place Order 24 - Adapter, Bulkhed Ring (Note 1) 53256 Purex (PENTAIR) 274440 $21.30 Place Order 25 - Adapter, Bulkhead, 2" (Note 1) 55517 Purex (PENTAIR) 471441 $23.40 Place Order 26 - Gasket, Fin Tube, Seal (Note 1) 30196 Purex (PENTAIR) 070951 $3.10 Place Order 27 - Flow Valve Assembly 55789 Purex (PENTAIR) 471750 $274.60 Place Order 28 - Power Element, Flow Valve (Note 1) 55699 Purex (PENTAIR) 472330 $201.75 Place Order 29 - Sub-Gas Manifold w/Plug (Note 1) 55612 Purex (PENTAIR) 472365 $74.70 Place Order 31 - Burner Tray Assembly - Model 200 55614 Purex (PENTAIR) 472366 $851.40 Place Order 31 - Burner Tray Assembly - Model 250 55524 Purex (PENTAIR) 472367 $981.20 Place Order 31 - Burner Tray Assembly - Model 300 55616 Purex (PENTAIR) 472368 $1,001.75 Place Order 31 - Burner Tray Assembly - Model 400 55526 Purex (PENTAIR) 472369 $1,224.95 Place Order 32 - Igniter Kit (Replaces 472216) 55618 Purex (PENTAIR) 460799Z $195.10 Place Order 33 - Window Glass w/Holder (Note 1) 55619 Purex (PENTAIR) 472370 $91.50 Place Order 34 - Flame Sensor (Note 1)(Replaces 471603) 55620 Purex (PENTAIR) 472251 $30.75 Place Order 35 - Gas Manifold w/Orifices, 0-4000 ft. - Model 200 55621 Purex (PENTAIR) 472285 35 - Gas Manifold w/Orifices, 0-4000 ft. - Model 250 55534 Purex (PENTAIR) 472286 $194.20 Place Order 35 - Gas Manifold w/Orifices, 0-4000 ft. - Model 300 55623 Purex (PENTAIR) 472287 35 - Gas Manifold w/Orifices, 0-4000 ft. - Model 400 55536 Purex (PENTAIR) 472288 $137.80 Place Order 36 - Gas Orifice, 0-4000 ft. (Note 4) 55537 Purex (PENTAIR) 472263 $12.35 Place Order 37 - Burner (Note 4) 55626 Purex (PENTAIR) 472211 $75.25 Place Order 38 - Jacket, Upper Panel, Left (Note 1) 30212 Purex (PENTAIR) 471575 $84.90 Place Order 39 - Jacket, Upper Panel, Right (Note 1) 55716 Purex (PENTAIR) 471576 $141.80 Place Order 40 - Jacket, Upper Sub-Plate (Note 1) 55629 Purex (PENTAIR) 471767 $66.80 Place Order 41 - Junction Box Assembly (Note 1) 55718 Purex (PENTAIR) 472015 $214.55 Place Order 42 - Air Pressure Switch, 0-4000 ft. - Model 250 55544 Purex (PENTAIR) 472179 $40.20 Place Order 42 - Air Pressure Switch, 0-4000 ft. - Models 300 & 400 55813 Purex (PENTAIR) 472182 $64.80 Place Order 43 - Module, Ignition Control (Note 1) 55546 Purex (PENTAIR) 472240 $3.10 Place Order 44 - Temperature Controller Assembly (Note 1) 30764 Purex (PENTAIR) 472086 $441.05 Place Order 45 - Right Door Assembly with Controller (Note 1) 55548 Purex (PENTAIR) 472087 $344.00 Place Order 45 - Right Door Assembly w/o Controller (Note 1) 55725 Purex (PENTAIR) 472372 $309.65 Place Order 46 - Left Door Assembly - Model 200 55726 Purex (PENTAIR) 471900 $222.10 Place Order 46 - Left Door Assembly - Model 250 55639 Purex (PENTAIR) 472318 $234.90 Place Order 46 - Left Door Assembly - Model 300 30768 Purex (PENTAIR) 471918 $257.45 Place Order 46 - Left Door Assembly - Model 400 30226 Purex (PENTAIR) 471726 $218.10 Place Order Thermal Cut-Off (Note 1) 29222 Purex (PENTAIR) 075173 $28.05 Place Order Wire Harness Assembly (Note 1) 55557 Purex (PENTAIR) 472320 $188.00 Place Order Transformer, 40 VA (Note 1) 55732 Purex (PENTAIR) 471571 $112.65 Place Order 
