Genuine Joe Urinal Screen w/Block, Non-Para,12/BX, Spice Scent/WE/BE - Non-para urinal screen features block and blue dye indicator. Water-soluble design cleans and deodorizes up to 30 days. Strong sudsing action assures sanitation. Urinal screen offers a natural odor-counteractant with a spice scent. Screen contains no para or acids.