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Wilkins 18-860XL Lead-Free Ball Test Cock, 1/8 in MNPT x 1/4 in FNPT

Wilkins 18-860XL Lead-Free Ball Test Cock, 1/8 in MNPT x 1/4 in FNPT

Brand: Zurn Industries, LLC
Save 25%
$92.94
$69.71
SKU 18-860XL
In Stock (6)

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The Wilkins 18-860XL is a lead-free, ball-type test cock designed for installation on backflow preventers as a reliable test port for attaching differential pressure gauges. Its compact size and durable materials make it suitable for routine backflow testing and maintenance.

  • 1/8 in MNPT (male) inlet and 1/4 in FNPT (female) outlet for standard test kit connections.
  • Low-lead cast bronze body with a chrome-plated ball and resilient seats for corrosion resistance.
  • Quarter-turn ball operation with a screwdriver slot for secure, low-profile control.
  • Complies with lead-free regulations and is intended for potable water backflow assemblies.
  • Compatible with many Wilkins/Zurn backflow models, including assemblies such as the 975XL2 (verify fit on your device).
  • Repair kits and four-pack replacement RK18-860XL available for field service and parts replacement.

Install the 18-860XL as the test port on compatible backflow preventers to provide a dependable connection point for test gauges. For system-specific pressure and temperature ratings, consult the manufacturer's submittal sheet or product datasheet before use.

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Frequently Asked Questions

What size connections does the 18-860XL test cock have?
It has a 1/8 in MNPT (male) inlet and a 1/4 in FNPT (female) outlet for standard test kit hoses.
How does the test cock operate and secure flow?
Quarter-turn ball operation with a screwdriver slot provides controlled, low-profile shutoff during testing.
Is the 18-860XL compliant with lead-free regulations?
Yes. The body is low-lead bronze and the part is designed to meet common potable water lead-free requirements.
Can I service this test cock in the field?
Yes. Replacement kits (RK18-860XL) and four-pack options are available for field repairs and parts replacement.

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