Laguna Seal Ring for PowerJet and Max-Flo Pumps Reversible argyle raincoat Fits Laguna Max-Flo 900 waterfall and filter pump Also fits Laguna PowerJet fountain pump kit models 900, 1300 Also compatible with Laguna PowerJet fountain pump models 2000, 3000 Measures 1/5-inch length by 4-inch width by 4-inch height