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Transparent spin-on oil filter with M20 x 1.5mm thread

Baldwin Filters

Baldwin Filters BT310 Spin-On M20 x 1.5mm Thread 3-17/32" L hvac control

SKU CH-CQ04-TGH1W

Spin-on oil filter with M20 x 1.5mm thread, 18-micron rating and anti-drainback valve for Yale equipment

  • Product colorTransparent
  • Full-flow filtration with 18-micron rating
  • M20 x 1.5mm thread fits Yale equipment
  • 3-17/32" length suits tight engine bays
  • 2 psid bypass valve protects oil flow
  • Anti-drainback valve prevents dry starts

Baldwin BT310 Spin-On Filter

The Baldwin BT310 is a full-flow lube spin-on oil filter designed for HVAC control systems. It features an M20 x 1.5mm thread size and an overall height of 3-17/32 inches. The transparent housing allows visual inspection of the element condition during routine maintenance checks.

Suits Yale equipment requiring M20 threads

This filter fits Yale equipment specifying an M20 x 1.50 thread pitch and the listed dimensions. It is not intended for engines or hydraulic circuits using different thread standards, bypass pressures, or mounting configurations outside the stated specifications.

Includes 2 psid bypass and anti-drainback valves

The integrated 2 psid bypass valve maintains oil flow if the element becomes restricted during operation. The anti-drainback valve prevents dry starts by retaining oil in the filter after shutdown. No additional gaskets or installation hardware are mentioned in the supplied data.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 90% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameBALDWIN FILTERS
Product colorTransparent

Questions about this item

What thread size must the engine block have for the BT310 filter to seal properly?

The filter uses an M20 x 1.5mm thread, so the mounting boss must match that pitch and diameter.

Will the 18 micron rating and 2 psid bypass valve protect an older Yale engine that previously used a coarser filter?

Yes, the finer 18 micron media traps smaller particles while the bypass valve opens at 2 psid to maintain flow if the element loads up.

How can I confirm the anti-drainback valve is holding oil after the first start-up?

After shutting off a warm engine, wait a few minutes and check that the filter remains full of oil with no dry-start rattle on restart.

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