Reliable G5 Cover Plate | Painted White | 3-3/16 in. | 135F | Formerly G4, G4A, and RFC | CG50W

Manufacturer Part Number:

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Reliable G5 Cover Plate, White, 135F
Reliable G5 Cover Plate, White, 135F Text on Cover
Reliable G5 Cover Plate, White, 135F Side View
Reliable G5 Cover Plate, White, 135F Bottom View
Reliable G5 Cover Plate, White, 135F Top View
Reliable G5 Cover Plate, CAD View
Reliable G5 Cover Plate, CAD View

  • Buy 100 - 399 and get 5% off
  • Buy 400 or above and get 15% off

Frequently Bought Together:

Reliable G5 Cover Plate, White, 135F
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Reliable (Rasco) White 135F (57C) Cover Plate Assembly for G4, G4A, RFC, and G5 Fire Sprinklers activates at 135F (57C) to facilitate timely activation of fire sprinkler heads with temperatures rated at 135F (57C) to 165F (74C). Reliable Automatic Sprinkler Company, otherwise known as Rasco, is a leading manufacturer of fire sprinklers and the G4 / G5 is the most common replacement Rasco fire sprinkler cover plate sold on

This Reliable (Rasco) White 135F (57C) Cover Plate Assembly for G4, G4A, RFC, and G5 Fire Sprinklers is listed by UL and cULus. When this white fire sprinkler cover plate reaches a 135 degrees fahrenheit the solder holding the plate's decorative exterior on the frame melts, and the two separate. Cover plates in stock finishes other than white are available on our site, and custom-finished may be available by special order - call us at 888-361-6662 or click here to contact us.

Sprinkler Identification Numbers (SIN) that work with Reliable (Rasco) G4, G4A, RFC, and G5 Fire Sprinkler Cover Plate include:

  • AG5604
  • AG5654
  • R2111
  • R2112
  • R2113
  • R2115
  • R2118
  • R2211
  • R2212
  • R2213
  • R2215
  • R2218
  • R2511
  • R2512
  • R2513
  • R2518
  • R4441
  • R5411
  • R5412
  • R5413
  • R5415
  • R5418
  • R6115
  • R6118
  • R6215
  • R6218
  • R7146
  • RA0611
  • RA0612
  • RA0616
  • RA0914
  • RA2312
  • RA3211
  • RA3216
  • RA3411
  • RA3413
  • RA3415
  • RA3415
  • RA5114

For many cover plates, the rated temperature is at least 20F (6.7C) cooler than the sprinkler head's activation temperature, which ensures that the cover plate detaches early enough to allow the sprinkler to activate on time. However, each manufacturer's product line varies slightly and cover plate temperatures may be closer to or further away from the fire sprinkler's activation temperature. Use only the cover plate approved by the manufacturer for your specific sprinkler.

Fire Sprinkler Helpful Tips:

Tip 1: When replacing cover plates it is important to purchase replacements from the same manufacturer as the fire sprinkler. Each manufacturer's plate is a little different in size, color, and so on. The manufacturer and temperature of a cover plate is printed on the base of the plate. To view this information, remove the cover plate. Most cover plates are either twist off or pull off.

Tip 2: Any modifications or replacements to a fire sprinkler system should be performed by qualified professionals.

Tip 3: National Fire Protection Association (NFPA) guidelines state that spare fire sprinkler heads and a wrench should be accessible at all times in a facility with a commercial fire sprinkler system installed. Often, state regulations also apply. Check with your local fire department.

Tip 4: All fire sprinkler systems should be visually inspected (often) and professionally inspected (annually).


Manufacturer Part Number:
Short Code:
QRFS Part Number:
Finish Detail:
Painted White
Outer Diameter:
3-3/16 in.
Inner Diameter:
2-1/8 in.
1-1/2 in.
Installation Type:
Push On or Thread On
135F (57C)
3/4 in.
Corrosion Resistant:
UL Listed:
FM Approved:
1.5 in. (38.1 mm)
3.31 in. (84.1 mm)
0.12 lb. (0.05 kg)

Data & Resources


1 review |
1 review
  • 4

    was readily available

    Posted by Eric Thuesen on Feb 21st 2022

    great service and help

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