3M 50051138541861 Multi Gas/Vapor Cartridge 6006 pool-control-systems It is compatible for use

It is compatible for use with the HiFlow 2"Top and Side Mount MultiPort Valve Model 261055 and 261152

and Effective

As an extra benefit

Length: 9 3/4"

also meets ASTM 227 specs

3M 50051138541861 Multi Gas/Vapor Cartridge 6006 pool-control-systems It is compatible for use3M recommended for ozone protection up to 10X the OSHA PEL or applicable government occupational exposure limits, whichever is lower. NIOSH approved against certain organic vapors, acid gases, ammonia, methylamine or formaldehyde USE WITH 3M Half and Full Face Pieces 6000, 7000 and FF 400 Series with a bayonet style filter cartridge connection or 3M Scott AV 3000 HT and AV 3000 SureSeal facepieces with 3M Scott AV 632 Bayonet Adapter SWEPT BACK DESIGN