3M Fire Barrier Block B258, Maroon Color, Pre-Formed Foam, Easy Installation, Sound Buffering, 2.36 in x 5.12 in x 8 in magnifying-safety-glasses It is packaged in a

It is packaged in a 200 ml cartridge and is to be used in conjunction with our 08117 Premium Manual Applicator and the 08194 Static Mixing Nozzles

Patented Turbo Cell for maximum efficiency and flow rate

5 lb pH Down: Your spa’s pH needs to be in the range of 7

Also available in Non-Adjustable versions

Top hole: 3-inch opening

3M Fire Barrier Block B258, Maroon Color, Pre-Formed Foam, Easy Installation, Sound Buffering, 2.36 in x 5.12 in x 8 in magnifying-safety-glasses It is packaged in a3M Fire Barrier Block B258, Maroon Color, Pre Formed Foam, Easy Installation, Sound Buffering, 2. 36 in x 5. 12 in x 8 in TESTED AND LISTED: Up to 2 hours in accordance with ASTM E814 (UL 1479) and CAN ULC S115 TIGHT FIRESTOP SEAL: Pre formed foam block maintains tight firestop seal to prevent fire, smoke and toxic gas transmission SUITABLE FOR MEDIUM TO LARGE APPLICATIONS: Fits medium to large openings in wall and floor through penetrations NO CURE