T-H Marine Thru-Hull Fittings Straight White All T-H Marine Thru-Hull Fittings are made of the highest quality virgin polypropylene to ensure durability and attractive appearance. Polypropylene is UV stabilized to provide longevity. Available in multiple sizes. Dimensions are for the hose bard size which matches your hose inside dimension. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Thru Hulls Fast Ship In Stock Ships Today