Hayward Universal H-Series BTU Pool and Spa Heater, Propane, Low Nox Size:400,000 BTU (W3H400FDP) Length: 21

Length: 21

Cleans up dead algae and other forms of non-living organic contamination

Quick-acting adhesive sets in about 15 minutes and fully cures in 24 hours

This Maytronics 9991432-R4 Ultra Fine Cartridge Filter Panel 4 per Pack for use with M400

IDEAL FOR THERMAL IMPACT: Flexible when cured

Hayward Universal H-Series BTU Pool and Spa Heater, Propane, Low Nox Size:400,000 BTU (W3H400FDP) Length: 21Hayward W3H400FDP Universal H Series 400,000 BTU Propane Pool and Spa Heater for In Ground Pools and Spas The Hayward Universal H Series 400,000 BTU Propane Heater delivers premium heating performance for years of reliable, long lasting comfort A durable cupro nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry Industry leading hydraulic design reduces circulation pump run