Dometic K1520-09 Roof Vent Installation Kit; Fan-Tastic ™; For Installation Of Fan-Tastic Ultra Breeze U1500 Series RV Roof Mount Vent; For Rubber Or Metal RV Roof; With 4 Brackets/ 4 Phillips Pan Head Screws 10 x 1-1/4/ 4 Washers .25 x .75 OD/ 4 Hairpin Cotter Pins/ 2 Push-In Retainers Attributes Compatibility: Fan-Tastic Ultra Breeze U1500 Series RV Roof Mount Vent Type: Rubber Or Metal RV Roof Includes Mounting Hardware: Yes Marine: Yes   Features & Benefits Limited 90 Day Warranty