KOSA Filtration · Sanitary Cartridge Housings
316L Single Cartridge Filter Vessel — 3/4 NPT
The smallest-footprint 316L stainless steel single-cartridge housing with 3/4 NPT connections for sampling, instrument protection and low-flow hygienic legs.
Key Takeaways
- 3/4 NPT single-cartridge vessel for the tightest spaces.
- 316L body for cleanable, hygienic service.
- Ideal for sampling points and instrument protection.
- Scales up to 1 NPT or multi-round as flow grows.
316L single cartridge vessel — 3/4 NPT
The KOSA 316L single-cartridge filter vessel with 3/4 NPT connections is the smallest-footprint hygienic housing in the family — built for tight spaces, sampling points and low-flow polishing where one sanitary cartridge element is sufficient.
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3/4 NPT vs 1 NPT vs multi-round
| Factor | 3/4 NPT single | 1 NPT single | Multi-round |
|---|---|---|---|
| Connection | 3/4" NPT | 1" NPT | Flanged / clamped manifold |
| Flow | Lowest | Low–moderate | High |
| Footprint | Smallest | Compact | Larger |
| Best fit | Sampling, tight spaces | Point-of-use, small lines | Main-line clarification |
Confirm the 3/4-inch NPT thread fits your line and that the gasket material is compatible with the process fluid.
Where it fits
The 3/4 NPT vessel is the right choice when space and flow are both constrained — skid sampling points, instrument protection and short hygienic legs. Scale up to the 1 NPT single or the multi-round 316L housing as flow grows.
Which cartridge vessel do you need?
1. Is the line very small or a sampling point?
Yes → the 3/4 NPT single-cartridge vessel is the smallest fit.
2. Can the line take a 1" connection?
Yes → the 1 NPT single vessel gives a little more capacity.
3. Does one element fall short on flow?
Yes → move to the multi-round 316L housing and keep singles for point-of-use.
Need the smallest-footprint cartridge vessel?
Tell KOSA your connection size, flow and micron target — we will match the 3/4 NPT or 1 NPT vessel and element.
Request a quote & technical review