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Wilkerson Compressed Air Lubricator Sight Domes

Replace a cracked or lost sight dome on your Wilkerson modular compressed air lubricator. Sight domes come with an O-ring to ensure a tight seal. Check the manufacturer series on your lubricator to ensure compatibility.
For Manufacturer Series | Material | Includes | Each | |
For Series No. 08 | ||||
---|---|---|---|---|
L08 | Polycarbonate Plastic | O-Ring | 0000000 | 000000 |
For Series No. 16, 17, 26 | ||||
L16, L17, L26 | Polycarbonate Plastic | O-Ring | 0000000 | 00000 |
For Series No. 18, 28 | ||||
L18, L28 | Polycarbonate Plastic | O-Ring | 0000000 | 00000 |
For Series No. 30, 31, 32 | ||||
L30, L31, L32 | Nylon Plastic | O-Ring | 0000000 | 00000 |
Parker Compressed Air Lubricator Sight Domes

Replace a cracked or lost sight dome on your Parker modular compressed air lubricator. Sight domes come with an O-ring to ensure a tight seal. Check the manufacturer series on your lubricator to ensure compatibility.
For Manufacturer Series | Material | Includes | Each | |
For Series No. 06, 07, 15, 16, 17, P3N, P3Y | ||||
---|---|---|---|---|
06L, 07L, 15L, 16L, 17L, P3N, P3Y | Polycarbonate Plastic | O-Ring | 0000000 | 000000 |
SMC Compressed Air Lubricator Sight Domes

Replace a cracked or lost sight dome on your SMC modular compressed air lubricator. Sight domes come with an O-ring to ensure a tight seal. Check the manufacturer series on your lubricator to ensure compatibility.
For Manufacturer Series | Material | Includes | Each | |
For Series No. 20, 30, 40, 50, 60 | ||||
---|---|---|---|---|
AL20-A, AL30-A, AL40-A, AL50-A, AL60-A | Polycarbonate Plastic | O-Ring | 0000000 | 00000 |
Norgren Compressed Air Lubricator Sight Domes

Replace a cracked or lost sight dome on your Norgren modular compressed air lubricator. Sight domes come with an O-ring to ensure a tight seal. Check the manufacturer series on your lubricator to ensure compatibility.
Easy-View All-Plastic Sights

Machined from one piece of stain- and impact-resistant plastic. They have a domed window so you can view tank contents from multiple angles.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Window Dia. | Max. Pressure | Min. | Max. | For Use With | Window Material | Each | |
Plastic | ||||||||
NPT Male Thread | ||||||||
1/2 | 7/8" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 000000 |
3/4 | 1 1/8" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 00000 |
1 | 1 3/8" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 00000 |
1 1/4 | 1 3/4" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 00000 |
1 1/2 | 2" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 00000 |
2 | 2 1/2" | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | 0000000 | 00000 |
Easy-View Sights


View tank contents from multiple angles through the plastic domed window.
Zinc-plated steel sights have a shatter-resistant window.
Plastic sights have an impact-resistant window and brass threads.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Window Dia. | Hex Size | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Zinc-Plated Steel | ||||||||||
NPT Male Thread | ||||||||||
3/4 | 1" | 1 1/4" | 10 psi @ 70° F | 0° | 160° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 000000 | 000000 |
1 | 1" | 1 1/2" | 10 psi @ 70° F | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 000000 | 00000 |
1 1/4 | 1 1/4" | 1 7/8" | 10 psi @ 70° F | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 000000 | 00000 |
1 1/2 | 1 5/8" | 2 1/8" | 10 psi @ 70° F | 0° | 160° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 000000 | 00000 |
Plastic | ||||||||||
NPT Male Thread | ||||||||||
1/4 | 3/8" | __ | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | __ | 0000000 | 00000 |
3/8 | 1/2" | __ | 65 psi @ 70° F | -40° | 180° | Hydraulic Fluid | Plastic | __ | 0000000 | 00000 |
Easy-View Flanged Sights

Check the contents of your tank from multiple angles with the domed window on these sights. The window is plastic, so it’s shatter resistant. To mount these sights, fasten their extended flange to tank walls.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Flange OD | Window Dia. | Bolt Circle Dia. | No. of Bolt Holes | For Screw Size | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Zinc | ||||||||||||
2 1/4" | 1 1/4" | 1 7/8" | 4 | No. 8 | 10 psi @ 70° F | 0° | 160° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Plastic | Buna-N Rubber | 0000000 | 0000000 |
Flanged Sights

An extended flange makes these sights easy to bolt onto tank walls. Sights for dark liquid have a reflector that makes liquid easy to see, especially in low-light conditions.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | For Dark Liquid | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flange OD | Window Dia. | Bolt Circle Dia. | No. of Bolt Holes | For Screw Size | Max. Pressure | Min. | Max. | For Use With | Material | Window Material | Seal Material | Each | |
1 5/8" | 3/4" | 1 5/16" | 4 | No. 6 | 10 psi @ 70° F | -20° | 250° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Zinc | Glass | Buna-N Rubber | 0000000 | 000000 |
1 7/8" | 1" | 1 9/16" | 4 | No. 6 | 10 psi @ 70° F | -20° | 250° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Zinc | Glass | Buna-N Rubber | 0000000 | 00000 |
2 1/4" | 1 1/4" | 1 7/8" | 4 | No. 8 | 10 psi @ 70° F | -20° | 250° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Zinc-Plated Steel | Glass | Buna-N Rubber | 0000000 | 000000 |
2 9/16" | 1 1/2" | 2 5/32" | 4 | No. 8 | 10 psi @ 70° F | -20° | 250° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Zinc | Glass | Buna-N Rubber | 0000000 | 00000 |
3 1/8" | 2" | 2 11/16" | 4 | No. 10 | 10 psi @ 70° F | -20° | 250° | Water, Hydraulic Fluid (Petroleum Based), Diesel Fuel | Zinc-Plated Steel | Glass | Buna-N Rubber | 0000000 | 000000 |
Press-Fit Through-Wall Sights

Press these sights into a hole in your tank wall; no additional mounting nuts are needed. They mount from the outside. The shatter-resistant plastic domed window allows you to view tank contents from multiple angles.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | OD | Window Dia. | For Max. Tank Wall Thick. | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Zinc-Plated Brass | |||||||||||
1 1/4" | 1 1/4" | 1" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 000000 |
1 1/2" | 1 1/2" | 1 1/4" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 00000 |
2" | 2" | 1 5/8" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 00000 |
Panel-Mount Flow Sights for Water, Oil, and Inert Gas

The included mounting ring lets you install these sights in instrument panels. They have three ball indicators that bounce in the domed-top window to show flow in your line.
Flow Sights | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Indicator | Repair Kits | ||||||||||||||
Pipe Size | Thread Type | Gender | Temp. Range, °F | Window Dia. | End-to-End Lg. | Ht. | Max. Pressure | Panel Cutout Dia. | Direction of Flow | No. of | Material | Each | Each | ||
Brass Body | |||||||||||||||
1/4 | NPT | Female | 35° to 120° | 1 5/8" | 3 1/8" | 2 1/8" | 150 psi @ 70° F | 2 3/8" | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 3 | White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic | 0000000 | 0000000 | 00000000 | 000000 |
3/8 | NPT | Female | 35° to 120° | 1 5/8" | 3 1/8" | 2 1/8" | 150 psi @ 70° F | 2 3/8" | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 3 | White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic | 0000000 | 000000 | 00000000 | 00000 |
1/2 | NPT | Female | 35° to 120° | 1 5/8" | 3 1/8" | 2 1/8" | 150 psi @ 70° F | 2 3/8" | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 3 | White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic | 0000000 | 000000 | 00000000 | 00000 |
3/4 | NPT | Female | 35° to 120° | 1 5/8" | 3 1/8" | 2 1/8" | 150 psi @ 70° F | 2 3/8" | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 3 | White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic | 0000000 | 000000 | 00000000 | 00000 |
1 | NPT | Female | 35° to 120° | 1 5/8" | 3 1/8" | 2 5/8" | 150 psi @ 70° F | 2 3/8" | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 3 | White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic | 0000000 | 000000 | 00000000 | 00000 |
Flow Sights with Indicator for Water and Oil

The indicator moves when flow is present, so it’s easy to visually confirm flow from a distance.
Sights with a bronze body are harder and more durable than sights with a brass body for a longer service life.
Ball indicator shows flow more prominently for easier viewing at a distance.
For technical drawings and 3-D models, click on a part number.
Window | Indicator | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Gender | Temp. Range, °F | Dia. | Type | End-to-End Lg. | Ht. | Max. Pressure | Direction of Flow | Material | Color | Each | |
Ball Indicator | |||||||||||||
Bronze Body | |||||||||||||
1/2 | NPT | Female | 32° to 250° | 1 5/8" | Domed Top | 2 7/8" | 2 3/4" | 100 psi @ 70° F | Left to Right, Right to Left | PTFE Plastic | White | 0000000 | 0000000 |
3/4 | NPT | Female | 32° to 180° | 2 7/8" | Domed Top | 4 5/16" | 3 3/4" | 100 psi @ 70° F | Left to Right, Right to Left | PTFE Plastic | White | 0000000 | 000000 |