Direct Vent Wall Pass Through SACK Helps to prepare EPDM liner

Helps to prepare EPDM liner for seaming

keeping water healthy

while the UV feature eliminates single-celled algae that cause green water

The kit includes three pre-wired

non-woven geotextile made from polypropylene also allows for any gases to escape properly

Direct Vent Wall Pass Through SACK Helps to prepare EPDM linerThis direct vent wall pass through thimble is made by Harman and is listed as a compatible venting component for Harman pellet stoves and inserts when using Simpson Pellet Vent Pro pellet venting. More Information: The exhaust opening will accommodate both 3" and 4" vent diameters and a 3" outside air flex hose. The term "direct vent" means that this thimble supports exhaust venting AND an outside air connection all in one Supports the outside air