Pentair PacFab FNS 48 sqft Standpipe Assembly (190036) adhesives A handle is useful because

A handle is useful because it gives the user a direct way to adjust airflow

Premium option for wet-end resealing work

filtration support can feel less dependable than it should

and this Darlly Filtration cartridge is designed for compatible applications using the 81372 reference

Pentair PacFab FNS 48 sqft Standpipe Assembly (190036) adhesives A handle is useful becauseThis standpipe assembly supports compatible PacFab FNS 48 square foot DE filter models by maintaining the proper internal flow path. It connects the internal filter assembly area and helps move clean water back through the system after passing through the DE grids. If the standpipe becomes cracked, misaligned, or brittle, filtration quality and system performance can suffer. Standpipe assembly for FNS 48 sqft DE filters Maintains internal clean water