Pentair Air Relief Tube | Triton II Sand Filter & TR Series | 150042 ART1004S backwash until the water runs

backwash until the water runs clear

increasing system back-pressure

IMPORTANT: COLOR-SPECIFIC PART

or missing grommet can allow water to migrate along the cord path into the niche

1 1/2" FPT

Pentair Air Relief Tube | Triton II Sand Filter & TR Series | 150042 ART1004S backwash until the water runsThe Pentair Air Relief Tube (150042) is the OEM replacement air relief tube for the TR140 and TR140C Sand Filter designed specifically for filters manufactured after November 1, 1999. IMPORTANT: VERIFY YOUR FILTER'S MANUFACTURE DATE BEFORE ORDERING This part is compatible with TR140 and TR140C filters manufactured after 11 1 1999 only. Check the manufacture date stamped on your existing filter housing before placing your order. The air relief tube is