Replacement Parts List

MODEL 350XL
Lead-Free* Double Check
Backow Preventers 3/4” & 1”
*This product contains a weighted average lead content less than 0.25% for wetted surfaces.
ITEM
NO.
DESCRIPTION 3/4” 1”
1 BODY 352-1XL-010F 353-1XL-010F
2 HOUSING 352-1A 353-1A
3 #1 SEAT 352-18A 353-18A
4 #2 SEAT 352-18B 353-18B
5 O-RING #1 125N-PM 131N-PM
6 O-RING #2 126N-PM 132N-PM
7 POPPET 352-30 353-30
8 SPRING 352-33 353-33
9 SLEEVE 352-2 353-2
10 O-RING, HOUSING INLET 214N 220N-80
11 O-RING, HOUSING OUTLET 223N 226N-80
12 SCREWS 352-11 352-11
13 TEST COCKS 18-860XL 18-860XL
14 BALL VALVE, INLET 34-850TXL 1-850TXL
15 BALL VALVE, OUTLET 34-850XL 1-850XL
16 CHECK ASSEMBLY #1 352-300A 353-300A
17 CHECK ASSEMBLY #2 352-300B 353-300B
18 HOUSING ASSEMBLY RK34-350V RK1-350V
19 TEST COCK CAP PLUG 2-7P 2-7P
RK34-350R
REPAIR KIT, RUBBER
MODEL 350XL, 3/4”
RK1-350R
REPAIR KIT, RUBBER
MODEL 350XL, 1”
PART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTION
125N-PM 1 O-RING #1 CHECK ASSY 131N-PM 1 O-RING #1 CHECK ASSY
126N-PM 1 O-RING #2 CHECK ASSY 132N-PM 1 O-RING #2 CHECK ASSY
214N 1 O-RING, HOUSING INLET 220N-80 1 O-RING, HOUSING INLET
223N 1 O-RING, HOUSING OUTLET 226N-80 1 O-RING, HOUSING OUTLET
352-30 2 POPPET 353-30 2 POPPET
RK34-350
REPAIR KIT, COMPLETE
MODEL 350XL, 3/4”
RK1-350
REPAIR KIT, COMPLETE
MODEL 350XL, 1”
PART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTION
352-300A 1 #1 CHECK ASSEMBLY 353-300A 1 #1 CHECK ASSEMBLY
352-300B 1 #2 CHECK ASSEMBLY 353-300B 1 #2 CHECK ASSEMBLY
214N 1 O-RING, HOUSING INLET 220N-80 1 O-RING, HOUSING INLET
223N 1 O-RING, HOUSING OUTLET 226N-80 1 O-RING, HOUSING OUTLET
RK34-350V
REPAIR KIT, VESSEL
MODEL 350XL, 3/4”
RK1-350V
REPAIR KIT, VESSEL
MODEL 350XL, 1”
PART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTION
ITEM 18 1 HOUSING ASSEMBLY ITEM 18 1 HOUSING ASSEMBLY
REPAIR KITS
4
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