Class 019
Non-Metallic Building Material Products
Vent covers made of plastic; vent covers of plastic for HVAC ducts; air flow adjustment registers made of plastic; vent covers made of vinyl; vent covers of vinyl for HVAC ducts; air flow adjustment registers made of vinyl; access panels of plastic; access panels made of vinyl; cold air returns made of plastic; cold air returns made of vinyl; vent covers made of tile, marble, natural stone, hardwood, and engineered flooring; vent covers of tile, marble, natural stone, hardwood, and engineered flooring for HVAC ducts; air flow adjustment registers made of tile, marble, natural stone, hardwood, and engineered flooring; access panels made of tile, marble, natural stone, hardwood, and engineered flooring; cold air returns made of tile, marble, natural stone, hardwood, and engineered flooring.