Labplas Filtra Bag blender bags have a full-page filter membrane that divides the bag into two compartments. During homogenizing (stomaching), liquid and bacteria pass through the filter while food particles and other solids stay on the sample side. You can then pipette a clean aliquot from the filtrate side without blocking the pipette tip. The bags are sterile, single-use and have a tough PET outer layer that resists punctures from bones, shells and other sharp material in the blender. You can choose bags with or without a MixWire closure for sealing the bag after blending.
This page covers ten Filtra Bags in three styles. MixWire closure bags (1 round + 1 flat wire) come in 3.8 × 8, 6 × 9, 7.5 × 12, 10 × 15 and 15 × 20 in. Tear-off strip bags without a closure come in 6 × 9, 7.5 × 12, 10 × 15 and 15 × 20 in. There is also an open-top 7.5 × 12 in bag. They're used in food and beverage microbiology, dairy, meat and produce testing, and research laboratories. Labplas Filtra Bags are available in Canada from Cambridge Environmental Products with CAD pricing and Canadian purchasing support.
The filter membrane runs the full length and width of the bag, with about 1,840 holes per square inch and a pore size of about 330 µm. Solids stay on the sample side and liquid and bacteria pass to the filtrate side, so you can pipette without debris blocking the tip or carrying over into your plates or broth.
The bag wall is a laminate with a polyethylene inner layer and a polyethylene terephthalate (PET) outer layer, 4 mil (101.6 µm) thick. The PET adds strength, so the paddles are much less likely to drive a bone fragment or shell through the bag wall and cause a leak in the blender.
EFT bags have a built-in heavy sample closure with one round and one flat wire. After blending, twirl the bag and fold the wires over to seal it for incubation, storage or transport, with no clips or sealers needed. The flat wire gives a firmer hold than standard round wires on heavier samples.
Labplas sterilizes Filtra Bags by irradiation, with a sterility assurance level (SAL) of 10⁻³ established according to ISO 11137. The bags are also listed as DNase-free, RNase-free and non-pyrogenic (endotoxin limit 2.15 EU/device).
Labplas states the bag materials meet FDA 21 CFR 177.1520 and EU Regulation No 10/2011 for food contact. Labplas also notes the bags can be used as part of a CFIA Preventive Control Plan (PCP) and HACCP program. That is not a CFIA approval of the product itself.
Labplas lists a 5-year lifespan when stored in a dry place at room temperature.
Choose the Closure style first, then the Size. The homogenizer volume is the most you should load (sample plus diluent) without risk of overflow during blending, so choose a bag whose homogenizer volume covers your sample and diluent together.
| Code | Closure | Size (in) | Size (mm) | Homogenizer Volume | Total Volume | Case |
|---|---|---|---|---|---|---|
| EFT-3780A | MixWire | 3.8 × 8 | 95 × 203 | 120 mL | 270 mL | 400 (2 × 200) |
| EFT-6090A | MixWire | 6 × 9 | 152 × 229 | 360 mL | 910 mL | 400 (4 × 100) |
| EFT-7012A | MixWire | 7.5 × 12 | 191 × 305 | 870 mL | 2,100 mL | 400 (4 × 100) |
| EFT-1015A | MixWire | 10 × 15 | 254 × 381 | 2,000 mL | 5,100 mL | 400 (4 × 100) |
| EFT-1520A | MixWire | 15 × 20 | 381 × 508 | 6,100 mL | 16,000 mL | 200 (2 × 100) |
| SCT-6090A | Tear-off strip | 6 × 9 | 152 × 229 | 360 mL | 910 mL | 400 (4 × 100) |
| SCT-7012A | Tear-off strip | 7.5 × 12 | 191 × 305 | 870 mL | 2,100 mL | 400 (4 × 100) |
| SCTO7012A | Open top | 7.5 × 12 | 191 × 305 | 960 mL | 2,300 mL | 400 (4 × 100) |
| SCT-1015A | Tear-off strip | 10 × 15 | 254 × 381 | 2,000 mL | 5,100 mL | 400 (4 × 100) |
| SCT-1520A | Tear-off strip | 15 × 20 | 381 × 508 | 6,100 mL | 16,000 mL | 200 (2 × 100) |
| Application | How Filtra Bags Help |
|---|---|
| Food microbiology sample preparation | Homogenize and dilute in one sterile bag, then pipette a particle-free aliquot. |
| Meat, poultry and seafood | The PET outer layer resists punctures from bones and shells. |
| Produce, spices and fibrous foods | The full-page filter holds back plant material that can block pipette tips. |
| Pathogen enrichment | Larger bags hold composite samples and enrichment broth for incubation. |
| Material | Thermoplastic laminate: polyethylene inner layer, PET outer layer; transparent |
| Thickness | 4 mil (101.6 µm) |
| Filter | Full-page membrane, about 1,840 holes per square inch, about 330 µm pore size |
| Opening | EFT and SCT codes: perforated tear-off line. SCTO7012A: open top |
| Closure | EFT codes: MixWire (1 round + 1 flat wire). SCT and SCTO codes: none |
| Sterility | Irradiation; SAL 10⁻³ established according to ISO 11137 |
| Other | DNase-free, RNase-free, non-pyrogenic (2.15 EU/device) |
| Food contact | FDA 21 CFR 177.1520; EU Regulation No 10/2011 |
| Temperature | Labplas lists −70 °C to 80 °C for the Filtra Bag range. The data sheet notes the FDA food-contact listing applies below 100 °C (212 °F). |
| Shelf life | 5 years |
| Storage | Dry place, room temperature |
| Manufacturer | Labplas Inc., Canada |
Specifications are from the Labplas technical data sheets for each code. Some distributor listings show the 7 × 12 in bag as 178 × 305 mm, 3 mil and 1,650 mL; we've used the current Labplas data sheets.
Sample size, diluent, blending time and incubation conditions come from your lab method. Follow your own procedure.
Need a sterility certificate for a specific lot? Contact Cambridge and we'll request it from Labplas.
Cambridge Environmental Products is a Canadian-owned laboratory supply distributor based in Ontario and has served Canadian labs since 1993. Labplas manufactures Filtra Bags in Canada, and we supply them with CAD pricing and shipping across Canada. We work with food and beverage QA/QC labs, food processors, contract testing labs, research laboratories, and universities and colleges, and can help with quotes, standing orders and choosing the right bag for your blender. Also see TWIRL'EM Write-On sampling bags, or browse our lab supplies collection.
It's a sterile blender bag with a built-in filter, used to homogenize food and other solid samples and then pipette a particle-free aliquot for microbiological testing.
The full-page membrane, about 330 µm pores, lets liquid and bacteria through but keeps solids on the sample side, so pipette tips don't block.
Put the sample on the printed (logo) side, and pipette from the clear side.
Yes. Labplas sterilizes them by irradiation, with a sterility assurance level of 10⁻³ established according to ISO 11137.
Both are 7.5 × 12 in. SCT-7012A has a tear-off protection strip that keeps the bag sealed until use. SCTO7012A is open-top with no strip, and holds slightly more (960 mL homogenizer volume vs 870 mL).
The EFT codes have a MixWire closure (1 round + 1 flat wire): twirl and fold to seal. The SCT and SCTO codes have no closure. Seal them with clips or a sealer if needed.
It's Labplas's heavy sample closure: one round wire and one flat wire. The flat wire holds the fold more firmly than two round wires, which helps with heavier samples.
Labplas says Filtra Bags suit all homogenizer types. Match the bag size to your blender's chamber and stay within the homogenizer volume. Contact Cambridge with your blender model if you're unsure.
Labplas also makes 15 × 15 in Filtra Bags (EFT-1515A, SCT-1515A) and a 7.5 × 15 in MixWire bag (EFT-7015A). They aren't on this page, so contact Cambridge for pricing and availability.
Yes. Labplas is a Canadian manufacturer, and Cambridge Environmental Products supplies Filtra Bags across Canada with CAD pricing.
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We'll recommend the right Filtra Bag size.
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