Clear plastic three way valve used for all Pondmaster pressurized filters. 

• ProLine Pressurized Filter Systems (P-1000) (#05010)
• ProLine Pressurized Filter Systems (P-2000) (#05020)
• ProLine Pressurized Filter Systems (P-4000) (#05040)
• ProLine Pressurized Filter Systems (PUV-1000 w/ 10 Watt UV Clarifier) (#05015)
• ProLine Pressurized Filter Systems (PUV-2000 w/ 20 Watt UV Clarifier) (#05025)
• ProLine Pressurized Filter Systems (PUV-4000 w/ 40 Watt UV Clarifier) (#05045)