ARG H-Style Filter Manifold | DE/Cartridge Upper Hub | FMDEX2
Couldn't load pickup availability
- SKU: FMDEX2
- Brand: ARG
- Type: H-style upper filter manifold/hub
- Function: Distributes flow and seats grid/cartridge pack
- Compatibility: Model-specific; verify by parts diagram and measurements
- Materials: N/A
- UPC/GTIN: N/A
Replace manifolds that show cracks, warping, stripped bosses, or eroded sealing surfaces. Pair with a new manifold O-ring and sound standpipe seal for best results.
- Filter Manifold O-Ring/Gasket | N/A
- Complete DE Grid Set (match square footage) | N/A
Q: How do I confirm fit?
A: Match the manifold shape and standpipe interface to your filter’s parts diagram and measure boss spacing before purchase.
Q: Can I reuse my old O-rings?
A: Not recommended. Flattened or nicked seals cause bypass and weeping—replace during rebuilds.
Q: Pressure still spikes after install—why?
A: Check for clogged elements, air leaks ahead of the pump, or a failing air relief assembly.
Delivery and Shipping
Delivery and Shipping
- FREE SHIPPING IN THE USA
- WORLDWIDE SHIPPING AVAILABLE
- 30 DAY RETURNS
- UPGRADED | EXPEDITED SHIPPING AVAILABLE
Description
Description
ARG H-Style Filter Manifold | FMDEX2
ARG FMDEX2 H-style filter manifold replaces a fatigued upper hub to restore even flow, proper element seating, and seal integrity. Verify fit by parts diagram.
Features
- Direct replacement H-style upper manifold/hub
- Helps prevent bypass and channeling for consistent filtration
- Stable element seating to reduce leaks and short cycling
- Drop-in installation when the tank and standpipe are sound
- Ideal during full grid/cartridge replacement service
Description
The FMDEX2 takes the stress and alignment duties at the top of the element pack. When the original hub is cracked or warped, the grid or cartridge set won’t seal evenly and water finds the path of least resistance. Replacing the manifold brings back uniform distribution across the elements, steadier pressure, and cleaner water between service intervals.
Pro Tip
Check the standpipe and manifold O-ring surfaces while you’re in the tank. Replace any flattened or nicked seals and tighten fasteners by hand—over-torqueing plastic parts leads to future leaks.
Related Parts
- Complete DE Grid Set (match square footage) | N/A
- Filter Manifold O-Ring/Gasket | N/A
- Air Relief Assembly (model-specific) | N/A
Technical Specifications
| SKU | FMDEX2 |
| UPC or GTIN | N/A |
| Brand | ARG |
| Model | H-Style Filter Manifold |
| Product Type | Filter upper manifold / hub |
| Size / Connection | N/A (fits specific tanks; confirm by diagram and dimensions) |
| Materials | N/A |
| Power Source | N/A |
| Compatible Product(s) | N/A (confirm against your filter model/parts list) |
| Dimensions/Weight | N/A |
| Warranty | N/A |
Product Warranty
Product Warranty
We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:
- Pentair Warranty
- A&A (Pentair In-Floor) Warranty
- Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
- Paramount Warranty
- BlueSquare Warranty
- Hayward Warranty
- All Other Manufacturer Warranties
Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.
Price Match Guarantee
Price Match Guarantee
Payment & Security
Payment methods
Your payment information is processed securely.
EPOOLSUPPLY DOES not store credit card details nor have access to your credit card information.
