General Wire 4F Flood Guard Float Model, 4-Inch, Small

STOP SMELLY DRAINS! Made from a flexible, antimicrobial polymer, Grate Seal is a permanent and maintenance free, one-way valve that is easily retro-fitted into drains and floor wastes to stop sewer smells and hazardous odors, disease carrying airborne mold and bacteria, vermin and cockroaches, sewer back-wash, suds and even noise coming from drains into habitable areas. From Homes to Hospitals to High-rises, Grate Seal is 100% effective.

Easy installation, with no alteration to existing outlets
Prevents the passage of odors, drain flies and other insects
One piece, with no braces to catch debris or obstruct water flow
Permanent, maintenance-free solution
Easy installation, with no alteration to existing outlets
Prevents the passage of odors, drain flies and other insects
One piece, with no braces to catch debris or obstruct water flow
Permanent, maintenance-free solution

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Grate Seal 3 & 4 Inch;