
If a standard liquid filter bag doesn’t fit your housing, your process, or your spec, we build one that does. Custom sewn filter bags — engineered, cut, and stitched to your exact dimensions — aren’t a side business at Universal Filters; they’re why customers who can buy commodity bags anywhere buy from us. Send a drawing, a sample bag, or even a competitor’s part number, and we’ll engineer and quote the equivalent.
What We Customize
- Dimensions — any diameter and length our media rolls support, through 8.5″ × 32″ and beyond
- Hardware — galvanized, stainless, polypropylene, or nylon rings; snap-seal flanges; Parker C-band; Cuno-style tops; drawstrings; ties; blank tops
- Media — polyester, polypropylene, Nomex felt; nylon and polyester mesh; FDA-grade variants; specialty media on request
- Features — handles, pull tabs, multi-layer constructions, oil-absorbing layers, glazed finishes
- Quantities — short runs and one-offs welcome; no punishing minimums
Specialty & Exotic Media
Beyond the standard felts and meshes, we fabricate bags from specialty media that most catalogs skip. The one we’re asked about most is canton flannel — a napped cotton fabric that has been used in filtration for generations, prized in duties like paint, varnish, and lacquer straining and plating-solution filtration, where the soft nap face polishes the liquid and releases cake cleanly. Canton flannel filter bags are a made-to-order item: tell us the dimensions and top style (ring, drawstring, or tie-on) and we’ll sew them to suit. Other specialty constructions — multi-layer combinations, oil-absorbing layers, glazed finishes, high-temperature media — are quoted the same way: describe the duty and we’ll spec the fabric.

How It Works
- Send the spec — drawing, sample, photo, or part number via the quote form.
- We engineer it — cut pattern, media selection, hardware. You get a quote, usually same or next business day.
- We build it — cut, sewn, and welded in Asbury Park, NJ. Repeat orders reference your part number and run identically every time.
Start a custom quote: 800-554-8555 or request a quote.