Field ControlsSKU: 37141

Field Controls 8 in. MG1 (01986501) Double-Acting Gas Draft Control with Collar

$150.61
Low Stock (2)

The 8 in. MG1 handles larger gas appliances on 7 or 8 in. vent pipe. Because it's double-acting, it controls draft at higher levels than a standard draft diverter allows, and it also swings open to vent positive pressure. That makes it a good fix for gas installations with unstable combustion or venting problems. Weights set the draft between .01 and .1 in. W.C. (inches of water column).

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays. Upcoming Closures: 11/26 and 11/27

More Details

Product overview
  • Part number: 01986501
  • Control size: 8 in.; nominal capacity 50.3 sq. in.
  • Fits pipe: 7 to 8 in. diameter (22 to 25-1/4 in. circumference)
  • Double-acting: relieves positive vent pressure as low as .01 in. W.C.
  • Adjustment: .01 to .1 in. W.C. (inches of water column) with weights
  • Applications: conversion burners, draft inducers, sidewall power venters, gas appliances without a draft hood
  • Collar included
Specifications
Manufacturer Part Number 01986501
UPC 9074722000
Overall Dimensions n/a
Material n/a
Domestic or Import n/a
End Style n/a
Type Double Swing
ADA Compliance n/a
Warning Professional installation required
Standards and Approvals n/a
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: Monday September 7, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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