TWIII Level Indicator Cap Without Vent

22 inch non-vented holding tank probe cap provides tank level readings for Dometic TW and DTM tank monitors.
• Dometic holding tank level indicator cap
• Non-vented cap
• Patented 3 probe holding tank cap provides tank level readings to Dometic DTM holding tank monitors
• 22"
• Installs in Dometic SeaLand tanks or any rigid tank with 3 in. FNPT opening
• Use P/N 307230272 holding tank flange kit if tank does not have a 3 in. FNPT tank access port