Check the listing for details. Raypak Swimming Pool Heater Propane & Natural Gas Pilot 002003F. Condition: New. Listed at 73.99 USD. Raypak Swimming Pool Heater Propane & Natural Gas Pilot IID 002003F works on models below Raypak 53A & 53B Model Spa-Pak HeaterRaypak 55A (5/1/87-9/30/89) & 55B (10/1/89-pres) Heaters Raypak Versa 105A Bronze & Cast Iron Heater (10/91-5/99)Raypak 151 Model CAL III & Spa Pak (Mfg 1974-12/01/81)Raypak Versa 153 (12/1/81-1/1/84) & 153A (1/1/84-2/15/87)Raypak Versa 155A/155B/155C HeatersRaypak Gemini & Spa Pak 183A, 263A, 333A, 403A HeatersRaypak Gemini & Spa Pak 185A,B,B/C - 405A,B,B/C Heaters Raypak Versa R185,265,335,405 (11-01-93 thru 11-01-98)Raypak RP2100 Digital 185 - 405 Model Heaters (11-01-98 +)Raypak 206A, 266A, 336A, 406A Digital,Atmospheric Gas HeaterRaypak RP2100 Digital Gas Models R185A, R265A, R335A, R405A Raypak RP2100 Digital Gas Models R185B, R265B, R335B, R405B