16 inch x 23 inch Lid for Escape Hatch Recommended for use with superchlorination/dechlorination

Recommended for use with superchlorination/dechlorination disinfecting procedure

Reversible ball platform lets you swap between 2 different-size balls

Features:Specifically Designed To Fit Curved Or €œradius€ RV StepsDurable

Drilling Required: Yes

Model 4:Fits: 29'-33'Case Wt

16 inch x 23 inch Lid for Escape Hatch Recommended for use with superchlorination/dechlorinationLarge exit vents admit three times more fresh air than conventional size dome vents. Vents open easily with either opening mechanism and hold at any position for air control. Available in opaque white with aluminum frame and four piece metal garnish, cut to roof thickness. Includes white plastic, leak resistant lids. #31 1829 has a plastic frame with 2 7 8" plastic garnish. #31 1827, #31 1803 and #31 1822 have metal frames with four piece 2" white