FREE delivery on orders over €150
Product Specifications:
| Item | Backflow Preventer Repair Kit |
| Ada Compliant | No |
| Compatible Valve Size | 4" |
| Compatible With Grainger Part No | 793PG4, 793PG6 |
| Compatible With Manufacturer Model Number | 4 LF909 |
| Compatible With Mfr Model No. | 4 LF909 |
| Compatible With Series | 909 Series |
| Compliance | NSF.png |
| Cross Reference | 0794090 |
| For Use With | LF909, 909 |
| Included | Check Disc, Check Stem O Ring, Cover O Ring, Diaphragm, Lubricant, Piston O Ring, Piston Seal, Rv Disc Assembly, Sleeve O Ring |
| Kit Contents | Check Disc, Cover O Ring, Sleeve O Ring, Piston O Ring, RV Disc Assembly, Diaphragm, Piston Seal And Lubricant |
| Kit Contents | Check Disc, Cover O-Ring, Sleeve O-Ring, Piston O-Ring, Rv Disc Assembly, Diaphragm, Piston Seal And Lubricant |
| Kit Type | Complete Rubber Parts Kit |
| Lead Free | Yes |
| Mfr. Series | RK-LF909 |
| Product Type | Complete Rubber Parts Kit |
| Type | Repair Kit |
| Used On | LF909, 909 |
Shipping Info:
| Ship weight (kg) | 0.77 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 35.56 |
| Ship width (cm) | 30.48 |
| HS code | 8481905000 |
| Country of Origin | US |
Product Details:
- Used to repair Series 909 lead-free, reduced-pressure zone assemblies as well as prevent back-siphonage of polluted water into the potable supply lines
- Includes a diaphragm, two moulded-disc assemblies and six O-rings for seat, relief valve & RV stem, flow tube and cover
Product Variants
| Product | Model | Compatible Valve Size | Kit Type | Product Type | Compatible With Mfr Model No. | Compatible With Series | Compatible With Manufacturer Model Number | Compatible With Grainger Part No | Used On | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
LFRK 909-RT 3/4-1 | 3/4" to 1" | Complete Rubber Parts Kit | Complete Rubber Parts Kit | 3/4 -1 LF909 | 909 Series | 3/4 -1 LF909 | 818DD4, 818DD6 | - | €165.40 | |
![]() |
LFRK 909M1-RT 1 1/4-2 | 1 1/4" to 2" | Complete Rubber Parts Kit | Complete Rubber Parts Kit | 1-1/4-2 LF909M1 | 909 Series | 1-1/4-2 LF909M1 | 818DD1, 818DD7, 818DE2 | - | €256.08 | |
![]() |
LFRK 909-RT 2 1/2-3 | 2 1/2" to 3" | Complete Rubber Parts Kit | Complete Rubber Parts Kit | 2-1/2-3 LF909 | 909 Series | 2-1/2-3 LF909 | 793PG1, 793PG2, 793PG3, 793PG5 | - | €676.75 | |
![]() |
LFRK 909-RV 3/4-1 | 3/4" to 1" | Relief Valve Rubber Parts Kit | Rubber Parts Kit | 3/4 -1 LF909 | 909 Series | 3/4 -1 LF909 | 818DD4, 818DD6 | - | €129.35 | |
![]() |
LFRK 909-RV 2 1/2-3 | 2 1/2" to 3" | Relief Valve Rubber Parts Kit | Relief Valve Kit | 2-1/2-3 LF909 | 909 Series | 2-1/2-3 LF909 | 793PG1, 793PG2, 793PG3, 793PG5 | - | €432.08 | |
![]() |
LFRK 909-RT 6 | 6" | Complete Rubber Parts Kit | Complete Rubber Parts Kit | 6 LF909 | 909 Series | 6 LF909 | 793PG7 | - | €936.15 | |
![]() |
LFRK 909-RT 8 | 8" | Complete Rubber Parts Kit | Complete Rubber Parts Kit | 8 LF909M1 | 909 Series | 8 LF909M1 | 793PG8 | - | €1,232.94 |
Explore Products
- SMC VALVES CDQ2B50-65DMZ-L-M9BAL Compact Cylinder, 50Mm Bore Size, 65 Mm Stroke Length
- J.W. WINCO 42-80-3/8x16-125-a0-s JW Winco GN 42-80-3/8X16-125-A0-S Leveling Feet
- WEG CSW30-RBRD Rubber Boot
- MCR SAFETY MU3664XL Leather Gloves, Size XL, Full Leather Leather Coverage, 3 PPE CAT
- TOUGH GUY 240120 Scoop Plastic 3 Qt
- PARKER P1D-G063MR-0050DTNNN Pneumatic Cylinder
- BOSTON GEAR F00685
- SMC VALVES CDA2FH80-200-Y59BL Tie Rod Cylinder
Explore More
- GOODWRAPPERS
- KEYSHAFT
- SUPERIOR TOOL
- TURTLESKIN
- EISCO SCIENTIFIC
- Foil Tapes
- Compressor Air Filter
- Sleeve Bearings
- Vent Valves
- Rigid Barrier Components
- MEMPHIS GLOVE Luminator Pigskin Leather Palm Work Gloves
- CHICAGO PNEUMATIC Air Cut-Off Tools
- MUELLER INDUSTRIES 722G Ductile Iron Triple Duty Control Check Valves
- OK INDUSTRIES Kynar Wire Wrapping Wires, Insulated, Silver Plated
- RUD CHAIN VWBG-V Load Rings, Metric Thread, Variable Length
- APPROVED VENDOR #4-40 Headless Hex Steel Flat Socket Set Screws
- HARRINGTON Jib Cranes
- INSIZE Clips
- ADAPT-ALL 9078 Series Run Tees, Male BSPP X Male ORB
- HAMMOND GRDKIT Series Bonding Wire Kits, 10 AWG
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
WATTS LFRK 909-RT 4 0794090 Reduced Pressure Zone Assembly Rubber Parts Repair Kit
€1,057.03 /unit







