The Trojan 602975 is the correct replacement quartz sleeve for the following systems:
The Trojan 602975 Quartz Sleeve For UV Max H & Pro 20 provides thermal protection for UV lamps in Trojan UVMax Pro20, H, and H Plus UV water filter systems. This Pro 20 quartz sleeve provides additional protection against potential damage from water. This Trojan replacement sleeve is open on both ends and requires replacement when worn or broken. This UV quartz sleeve is constructed with 100% fused silica, which provides high UV light transmittance through water.
Trojan 602975 Quartz Sleeve For UV Max H & Pro 20 specifications: