DuraVent 4DFS-FC PelletVent Connector/Adapter - 4" Type_Heater Element Filtration is what keeps spa

Filtration is what keeps spa water clear and comfortable

and far less scrubbing

It's formulated specifically to resist pH changes even when the spa is refilled with hard water

and occasionally breaking loose as visible "black flakes" or grey debris when the jets are turned on after a long shutdown

DuraVent 4DFS-FC PelletVent Connector/Adapter - 4" Type_Heater Element Filtration is what keeps spaDuraVent 4DFS FC PelletVent Connector Adapter 4" Overview DuraVent PelletVent Pro features twist lock construction in both 3" and 4" diameters. Listed at 1" clearance to combustibles in the USA. This PelletVent Pro can be used in both vertical and horizontal installations. Stainless Steel welded seam inner wall, combined with galvalume welded seam outer wall. Whats in the Box 1 x DuraVent 4DFS FC PelletVent Connector Adapter 4" Specifications