PFister 941-246Y Replacement Dome Cap . Pfister takes pride in every single piece, part, and product they develop. Helping them maintain a their reputation and credibility. They take that same pride in creating replacement parts to perform the way they were originally intended too. Rather its for their faucets, showers, or bidets, you can rely on its quality to perform and last. The Pfister 941-218S Is a Genuine Replacement Cap Nut for Pfirst 134 Lavatory Faucets. This individual Replacement Part comes in a fine Stainless Steel finish.