Raypak Differential Pressure Kit For Avia 404A | 018931F Suction cleaner and maintains consistent water flow

and maintains consistent water flow under heavy pump operation

designed for aquastar pipeline plf27000 filters

providing a secure and reliable fit

ensuring your pool or spa remains clean and well-maintained

and standard models

Raypak Differential Pressure Kit For Avia 404A | 018931F Suction cleaner and maintains consistent water flowThe Raypak 018931F Differential Pressure Kit is an OEM replacement part for Avia 404A and Avia HD NiTek 404A gas fired heaters. It measures pressure differences through the heaters water flow system, enabling shutdown or alarm functions when blockages or low flow occur. Designed with OEM precision, it helps prevent overheating while supporting consistent efficiency. Constructed from corrosion resistant materials, this kit provides reliable operation