Multiport Control Valve 1-1/2 Inch MPV Side Mount (FNS D.E.) paint-size_1 Gallon a blind flange is solid

a blind flange is solid and has no opening

This is a PVC Schedule 80 Coupling with FIPT x FIPT fitting connections that measure 4 Inch

175 mil Heavy-Duty Dibond Aluminum

The model RC307MC Pro Series 300 is recommended for pools 180

Dolphin Filter Bags trap all the dirt and microfilter the pool water

Multiport Control Valve 1-1/2 Inch MPV Side Mount (FNS D.E.) paint-size_1 Gallon a blind flange is solidSide mounted Multiport valves are designed for maximum performance and working pressures. Available in 1 1 2 and 2 inch threaded or slip models. The six position dial type valves offer convenience, ease of use and efficient operation. The valves include connecting pipe to match side ports in sand and D. E. filters. VARI FLO CONTROL VALVE FUNCTIONS: Filter Normal position during operation of system. Backwash Position when operating system to purge