Luminor 300070 Replacement O-Ring for NSF-Validated UV Systems

The 300070 is a genuine Luminor replacement O-ring for Luminor NSF-validated UV water treatment systems. Luminor's parts list describes it as the NSF O-ring package, size #2-212. NSF-validated Luminor models carry an A or B suffix in the model number, and their chambers use this O-ring in place of the standard BLACKCOMB gland-nut O-ring (300038).Used on Luminor NSF-validated systems, including LBH6-251A and LBH6-401A BLACKCOMB-HO 6.1 (NSF/ANSI 55 Class A) Other LBH6 Class A models (LBH6-051A, -101A, -151A) LB5-101B and LB5-151B BLACKCOMB 5.1 (NSF/ANSI 55 Class B) Other Class B models (LB5/LB6-021B, -031B, -061B, -101B, -151B) Why use the genuine partNSF/ANSI 55 certification covers the system as Luminor built it. Replacing seals with the specified Luminor part keeps the chamber sealed to specification. Inspect the O-ring whenever the chamber is opened for sleeve service (Luminor recommends cleaning the sleeve every 6-12 months) and replace it if it is flattened, cracked or leaking.Specifications Manufacturer part number: 300070 Type: O-ring package for NSF-validated Luminor systems Size: #2-212 UPC: 880027025640 Confirm part 300070 in your system manual before ordering. Standard (non-NSF) BLACKCOMB gland nuts use O-ring 300038, and the UV sensor port uses O-ring 310120.