Maid-O-Mist #1 MAIN Steam Vent, 1/2 x 3/4

Highlights:

• 1/2 FPT & 3/4 MPT
• Straight
• Jacobus steam vents
• Use one or more at the end of the short main. or the main running to the warm side
• Use two or three at the end of the long main. or the main running to the cold side
• Float prevents water escape
• Assures even heat distrubution
• Reduces radiator noise
• Boxed