S3 #4 S3QP Pump Head - 25 PSI - Santoprene - Package of 2 fitting-type_Union This pool depth marker states

This pool depth marker states 3

they will help keep the water clear and clean until you are ready to open the pool in the springtime

Like all Raypak heaters

This is a Maytronics 6101611-R4 package of 4 Climbing Brush Rings for specific Dolphin Robotic Pool Cleaners

5 inch female National Pipe Tapered (NPT) thread (Type F)

S3 #4 S3QP Pump Head - 25 PSI - Santoprene - Package of 2 fitting-type_Union This pool depth marker statesThis is a package of 2 Stenner S3QP Pump Head #4 replacement with Santoprene tube and rated for 25 PSI. The replacement pump head includes tube, duckbill and 1 4 inch ferrules and works with the S Series S3 Prfefix pumps.