Prest-O-Fit 1-0004 Blueline Universal Sewer Hose Adapter Secure, leak free connection Push-on connection to Blueline hoses without the need for clamps Also connects to standard sewer hoses Color: Blue Shape: Straight Prest-O-Fit Hose Adapter Four bayonet hooks and an X-ring seal provide a secure, leak-free connection to most waste-valve outlets Provides a push-on connection to Blueline Ultimate Sewer Hoses without the need for clamps Also connects to standard sewer hoses Blue