ROSIN FILTERBAGS
Your filter bag is the last stage of separation. A weak seam blows out mid-press and drifting micron quietly ungrades your output. These bags hold — ultrasonic-welded seams, food-grade nylon per supplier spec, and consistent micron accuracy batch after batch.
THE LAST STAGE
OF SEPARATION
Ultrasonic-Welded Seams
Seams are welded, not stitched — no thread to fail and no needle holes to leak, so they hold under full press pressure.
Food-Grade Nylon Mesh
Food-grade nylon per supplier spec, built to take everything upstream without tearing or shedding into your press.
Consistent Micron
Every rating holds micron batch after batch, so the fraction you graded last week is the fraction you grade today.
Why This Bag Holds
Everything upstream — your material, your temperature, your press — funnels through this bag. If the seam gives out under pressure or the mesh drifts off its rating, the work you put in walks out the side. We build these to keep that from happening: seams are ultrasonic-welded rather than stitched, so there's no thread to fail and no needle holes to leak. The mesh is food-grade nylon per supplier spec, and every rating holds consistent micron batch after batch, so the fraction you graded last week is the fraction you grade today.
Match the Micron to Your Material
Pick the right micron for your material and the output you want.
| Micron | Best For | Output |
|---|---|---|
| 5µ | Premium, top-shelf material | Lowest — the cleanest press |
| 15µ | Fine, high-grade material | Low — very clean |
| 25µ | Premium material (most popular) | Medium, balanced |
| 32µ | General pressing | Higher — more yield |
PICK YOUR
MICRON
- Best forPremium, top-shelf material
- OutputLowest — the cleanest press
The finest mesh in the set — it passes the least source material for the cleanest possible press, trading a little yield for purity.
- Best forFine, high-grade material
- OutputLow — very clean
A very fine mesh for high-grade material where clarity still comes first.
- Best forPremium material (most popular)
- OutputMedium, balanced
The everyday premium micron — a balanced mesh most shops reach for first.
- Best forGeneral pressing
- OutputHigher — more yield
The most open mesh in the set — it opens up for more output when yield matters.
SHOP ROSIN
BAGS
2" × 4" Bags
5µ · 15µ · 25µ · 32µ
Match the Micron to Your Output in Seconds
Pick the rating that fits the press you want. All bags sold in 10-packs. Mix and match microns in the same size.
Cleanest Press
Premium, top-shelf material where purity comes first: 5µ
Fine & High-Grade
High-grade material where clarity still leads: 15µ
Everyday Premium
The balanced micron most shops reach for first: 25µ
More Yield
General pressing when output matters most: 32µ
New to matching bags and technique? See our closed-collection washing guide for a full walkthrough.
Buy by the Case, Save up to 40%
The more you order, the deeper the discount — built for shops that burn through bags every week.
| Volume | Tier | Discount | Notes |
|---|---|---|---|
| 100+ | Volume | Save 15% | Minimum bulk pricing tier |
| 500+ | Best Value · Most Popular | Save 25% | Best value for medium facilities |
| 2000+ | Enterprise | Save 40% | Custom pricing available |
Put a Bag on It That Holds.
Pull the bag after a full press and the seam's dead-flat and intact — no blowout, no thread pulling, the exact fraction you graded last week sitting clean in the pouch. Ultrasonic-welded seams, food-grade nylon per supplier spec, consistent micron batch after batch. One team welds and ships it from Lake Forest, California. Talk to an engineer for pricing and lead time.