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Small brass sight glass with copper sweat fittings on each end

Value Brand

Value Brand Sight Glass 1/4 x 1/4 Sweat

SKU CH-DNA6-F8X1E

A sight glass with 1/4 x 1/4 sweat fittings for refrigerant flow monitoring

  • Allows visual refrigerant inspection via sight glass
  • Sweat fitting design enables secure copper pipe brazing
  • 1/4 x 1/4 connections suit standard HVAC lines
  • Plated steel body resists corrosion in system environments
  • Two-piece O-ring construction simplifies maintenance access

HVAC Sight Glass 1/4 Sweat

This ZORO SELECT sight glass provides visual monitoring for HVAC refrigerant lines. It features a sweat fitting type with 1/4 x 1/4 connections and an overall length of 4 5/8 in. The unit uses copper fittings and plated steel construction for durability. A two-piece O-ring design helps maintain a secure seal during operation.

Replaces Obscured Line Sections

Install this glass when an existing line lacks a viewing window or when a worn sight glass clouds over. The jump is worth it whenever a technician needs direct visual confirmation of refrigerant flow or condition. It upgrades a closed pipe segment into an inspectable point without changing the line size.

Fits Copper Refrigerant Lines

The sweat fittings require brazing onto 1/4 in copper tubing during assembly. Plated steel body and copper ends integrate with standard HVAC plumbing materials. The O-ring design allows the two pieces to be joined after the fittings are secured, freeing up alignment flexibility during installation. California Proposition 65 warnings apply for cancer and reproductive harm.

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 nameZORO SELECT

Questions about this item

What pipe size does the 1/4 x 1/4 sweat fitting connect to?

The sight glass uses 1/4 x 1/4 inch sweat fittings for copper pipe connections.

How is the sight glass installed into the refrigerant line?

It is brazed into the line using the copper sweat fittings; ensure the O-ring stays seated during heating.

When should the internal O-ring be replaced?

Replace the O-ring if moisture indication appears or during any system service that opens the glass body.

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