Highly polished 316 cast stainless steel. Interior is powder coated for durable high gloss finish. Standard interior color comes in white. Threads into deck plate (12 treads per inch) 
 
*Custom interior colors available.
 
Size 3"   
Deck Plate Cut-Out 3-3/8" 
Deck Plate Overall Width 4-7/8"
Opening Dimensions 4-5/8" x 2 7/16"  
Height 3 7/8"  
Weight 3 lbs
 
Size 4"   
Deck Plate Cut-Out 4-3/8 " 
Deck Plate Overall Width 5-5/8"
Opening Dimensions 7-1/2" x 3-5/8"  
Vent Height  5-3/8"
Weight 5 lbs
 
Size 5"   
Deck Plate Cut-Out 5-3/8 " 
Deck Plate Overall Width 7-1/4"
Opening Dimensions 9-1/2" x 4-1/2"  
Vent Height  6-1/2"
Weight 8 lbs