Dixon 4 in. x 3-1/4 in. TTMA Flanged Short Sight Flow Indicator

4 in.
4 3/8 in.
3 1/4 in.
1.50 LBS
WARNING: This product may contain a chemical known to the State of California to cause cancer & reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Dixon 4 in. TTMA Flanged sight glasses are made of a durable cast aluminum housing with a low cost sight glass tube that can be easily replaced. The sight glass allows for visual identification of the product prior to opening the valve. Larger 4 3/8 in. inside flow indicator allows butterfly valves to be connected to either end.

Note: Due to the proprietary blending of petroleum products, Dixon recommends that the thermoplastic tubing and the gaskets be immersion tested in the product to be handled to ensure compatibility.


  • Strong yet lightweight
  • Acrylic sight glass
  • Baylast O-ring and retainer ring
  • Works with truck tank butterfly valves found on gasoline tankers
  • Retaining ring and machined lip hold the acrylic tube in place
  • Fuel Compatibility: Gasoline and diesel, up to E100 and B100 biofuels


  • Maximum flange bolt torque: 200 in-lb (inch pounds)
  • Maximum temperature: 140° F (60° C)
  • 4 in. TTMA flange
  • 3 1/4 in. width
  • 4 3/8 ID flow indicator