GRACO Sightglass, 3 Feed - (SKU: 556689)The GRACO 556689 is a sightglass component designed for use in lubrication systems, specifically as a visual indicator for up to three feed lines. Its material is not specified in available sources, but it is intended to allow operators to monitor lubricant flow and ensure proper system operation within GRACO equipment. Key Features: Sightglass 3 Feed Compatible with GRACO lubrication systems, particularly those requiring visual monitoring of multiple

Designed for GRACO spray foam and chemical pump equipment (specific models not listed in available sources)

Ensure all surfaces are clean before applying new seals

Align knob correctly with the pressure control mechanism

SaniForce 3250 HS-PH series air-operated double diaphragm pumps

intended to provide precise spacing or adjustment within GRACO spray equipment

Inspect the plug and mating surface for damage or debris before installation

Install flat tip air cap assembly

Suitable for industries such as food and beverage

Follow manufacturer guidelines for gland replacement

GRACO RTX 5000 air compressor (as part of the RTX 5000 Filter Kit)

The GRACO 17W005 Handle is a replacement part designed for use with GRACO airless paint sprayers

RTX series (specific model compatibility not detailed)