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Forespar 5/8" Vented Loop (MF 843 - Anti-Siphon Valve)

SKU: FOR-903003  |  Manuf. Code: 903003
$36.76 USD
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DESCRIPTION

MF 843 Vented Loop - 5/8 in.

Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither vent nor loop will corrode. The duckbill one way valve is designed to seal properly if particulate is present in fluids. The new MF-846 vent barb assembly option can be used in lieu of the standard MF-841 cap/duckbill. This option allows venting to the outside of the hull via a 1/4" (6.35mm) hose.

Our Part # FOR-903003 | Mfr. Part # 903003

FEATURES

  • 5/8" hose diameter vented loop.
  • Prevents siphoning in marine systems.
  • Ensures safety of plumbing installations.
  • Durable marine-grade construction.
  • Essential for head and engine systems.

TECHNICAL INFORMATION
DescriptionImperialMetric
Barb size5/8 in15.9 mm
Height4 1/2 in114.3 mm
Width4.0 in101.6 mm

KNOWLEDGE BASE

Forespar Marelon Plumbing — Product ChartOne chart for the classic Marelon range: vented loops, Y-valves, MF 849 seacocks, MF 850 ball valves, tailpipes.View Selection Guide →
Forespar Marelon Vented Loops — InstallationSize, place and maintain Forespar Marelon vented loops (anti-siphon valves) so heads, bilge pumps and engine systems.View Manual →
Forespar Marelon Plumbing — CatalogueFind the right Marelon seacock, valve, thru-hull or vented loop: catalogue contents, Pro Series part number coding and.View Selection Guide →