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WC34-PR 10" Housing with Installation Kit
Lead time: Expected restock date is November 12, 2026. Order now and we ship as soon as stock lands.
Part R52018 is Pentair's kitted version of the Dura-Series 10" standard housing: the same polycarbonate housing with a stainless pressure-relief button, plus the SW-1B wrench, in one box. It replaces the legacy WC34-PR (152018) housing kit. The clear sump lets you check cartridge loading at a glance.
Housing plus installation kit
- ✓ Reinforced polypropylene cap (slate) with pressure-relief button
- ✓ 10" clear polycarbonate sump
- ✓ #241 EPDM O-ring, factory installed
- ✓ SW-1B sump wrench
- ✓ Installation & operating instructions
- ✗ Filter cartridge
Wall mounting: the cap has molded mounting locations for the MC-1A zinc-plated bracket (150578), sold separately.
Materials and operating limits
| Sump Material | Polycarbonate (Clear) |
| Cap Material | Reinforced polypropylene (Slate) |
| O-Ring | #241 EPDM, radial seal |
| Button Assembly | 300-series stainless steel, EPDM, polypropylene |
| Port Size | 3/4" NPT inlet & outlet |
| Cartridge Size | 10" x 2.5" (fits 2-1/2" to 2-7/8" diameter) |
| Maximum Pressure | 125 PSI (8.6 bar) |
| Temperature Range | 40–125°F (4.4–51.7°C) |
| Initial Pressure Drop | 1.7 PSI @ 10 GPM (0.11 bar @ 38 Lpm) |
| Maximum Dimensions | 12.26" x 5.00" (311 mm x 127 mm) |
| Certifications | NSF/ANSI 42 (material & structural) |
Dura-Series construction
Polycarbonate Sump
Dura-Series sumps are molded from polycarbonate instead of polypropylene or SAN, for a tougher housing that shrugs off the stress of repeated cartridge changes.
Radial EPDM O-Ring
The radial seal design seats the O-ring on the side of the sump, so the seal doesn't depend on how hard you tighten — it resists leaks from over- and under-tightening alike.
Hard-Stop Threading
The sump threads to a positive stop against the cap. When it stops, it's fully installed — no guessing, no cracked caps from cranking too far.
Drill Bosses & Mount Points
Cast-in bosses on the cap accept pressure gauges and sensors, and dedicated mounting locations line up with the standard MC-1A bracket.
Four steps to a leak-free install
- Shut off the water supply and open a downstream faucet to relieve pressure. Allow at least 2-1/4" of clearance below the housing for cartridge changes.
- Wrap the 3/4" NPT inlet and outlet threads with PTFE tape and plumb the cap in the direction of the flow arrows. Mount the cap to the wall with an MC-1A bracket (sold separately).
- Apply a generous coat of silicone grease to all surfaces of the EPDM O-ring and seat it in the sump groove. Drop in your cartridge and thread the sump up until it stops against the cap.
- Turn the water back on slowly, press the pressure-relief button (PR models) to purge trapped air, and check for drips before closing the faucet.
Pro tip: Pentair rates the sump for replacement every five years. Keep a spare #241 EPDM O-ring (R51120) on hand and swap it any time you see nicks, flattening or weeping at the cap.
Accepts all standard 10-inch cartridges
Fits any 10" x 2.5" cartridge from 2-1/2" to 2-7/8" in diameter — Pentek sediment, string-wound, pleated, GAC and carbon block, plus IPW, Omnipure, KX and other standard-size cartridges. Same footprint and port spacing as the Pentek standard housings it replaces.
Ships from California
Packed and shipped from our Santa Ana warehouse
Genuine Pentek
Authentic Pentair Dura-Series product with the Pentair symbol molded inside the cap
Build Help
Not sure what fits? Call (877) 541-6603 and we'll match the right housing, cartridge and hardware
