Pentair 4 in. x 6 in. Metal Flue Collar | 77707-0076 Junction Boxes Never substitute an incorrect orifice

Never substitute an incorrect orifice — orifice bore diameter is fuel-type specific and directly affects combustion safety

this grid delivers reliable filtration performance and is designed to seat correctly within the S7D75's unique modular housing for a secure

it is time to replace

Also known as: AS100P

Free & Klear blends our original SeaKlear Chitosan Clarifier

Pentair 4 in. x 6 in. Metal Flue Collar | 77707-0076 Junction Boxes Never substitute an incorrect orificeThe Pentair Metal Flue Collar (77707 0076) is the OEM replacement 4 inch x 6 inch venting adapter designed specifically for negative pressure vertical venting installations. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. This metal flue collar