Cartridge Filter, Pentair Rainbow RTL-50, Top Load, 1-1/2″s | R172504

Rainbow/Pentair RTL-50, model R172504 is a 1-1/2"s top load filter. For use on portable spas, it is designed to mount in a niche so that the main body is under the shell of the spa, while the top is accessed from above the spa. This complete filter includes a niche lock ring (secures the body to the niche), lid lock ring (secures the lid), push down lever (to secure and release the lid lock ring), 50 sq. ft. cartridge, and lid w/o chemical feeder. (Lid w/ chemical feeder is optional) The diameter of this filter canister is 6-1/2″.
The diameter of the hole in the niche is 6-5/8″

🔧 Parts and fittings for this

	Part	Our part number	Availability
	Adapter, 1-1/2" Slip x 1-1/2" Female Pipe Thread	435-015	84 in stock
	Union, 1-1/2" Slip x 1-1/2" Slip/2" Spigot	400-5530	45 in stock
	Tool, Pool Tool, Wire Saw, PVC	139	53 in stock
	Tank Base, Pentair Rainbow RTL	R172452	16 in stock
	Coupling, 1-1/2" Slip x 1-1/2" Slip, Short	S429-015	Available to order
	Lasco Coupling 429-015	429-015	826 in stock
	Lock Ring, Pentair Rainbow RDC/RTL/Leaf Traps	R172214	Available to order