Check the listing for details. American Louver Stratus Cone Diffuser With 12"" Neck White STR-C-12W American. Color: White, Condition: New, Made in US. Listed at 77.27 USD. SAY HELLO TO A CORROSION-RESISTANT ALTERNATIVE TO STEEL AND ALUMINUM. ALL PLASTIC DIFFUSERS MADE FROM ENGINEERED POLYMERS OUR STRATUS DIFFUSERS ARE DESIGNED TO OUTPERFORM AND OUTLAST COMPARABLE METAL DIFFUSERS. IN FACT THIS REVOLUTIONARY NEW PLASTIC PRODUCT WON'T RUST FADE OR CORRODE DUE TO ITS UNIQUE PROPERTIES. PLUS IT'S A COST-EFFECTIVE OPTION AVAILABLE IN CONE OR PLAQUE STRATUS PLASTIC DIFFUSERS ALSO FEATURES AN EXTRA TALL NECK FOR EASY INSTALLATION. ALL PLASTIC DIFFUSERS MEETS UL 2043 FIRE RATING WON'T RUST CORRODE OR FADE DISHWASHER SAFE NEVER NEEDS PAINTING INDISTINGUISHABLE FROM METAL WHEN INSTALLED AVAILABLE IN BOTH CONE AND PLAQUE STYLES WHITE AND BLACK STRATUS DIFFUSERS ARE PERFECT FOR RESTAURANTS HOSPITALS MRI CENTERS THEATERS FOOD PROCESSING OFFICES.