Rosin Press Filter Bags x10 - Double Stitched - 2" x 4" and 2.5" x 4.5 – Recommended Vape Supplies
Rosin Press Filter Bags - Nylon Monofilament - Double Stitched
Rosin Press Filter Bags  x10 - Double Stitched - 2" x 4" and 2.5" x 4.5"
Rosin Press Filter Bags - Nylon Monofilament - Double Stitched  x 10
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Rosin Press Filter Bags x10 - Double Stitched - 2" x 4" and 2.5" x 4.5"

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Nylon Monofilament Double Stitched Rosin Press Bags, tested up to 1500PSI.


Available Bag Sizes

  • 2" x 4"
  • 2.5" x 4.5"


Available Micron Sizes

  • 25 Micron
  • 37 Micron
  • 70 Micron
  • 90 Micron
  • 120 Micron
  • 160 Micron



  • 10 x Rosin Press Filter Bags
  • Nylon mono-filament mesh 
  • Double Stitched seams for extra strength - Also great for cutting down bag sizes
  • Extra thick nylon stitching with pattern for excellent strength
  • Inverted Bags (inside out, seam on the inside)
  • Resealable storage bag 
  • Dye-Free
  • Heat Resistant up to 220 degrees °C
  • FDA Approved Nylon
  • Tested to 1500 psi (unfolded) 


What Size Do I Need? 

In short - if you want a higher yield go for a larger micron size, if you want a cleaner purer concentrate, go smaller! 

  • 25/37 Micron - Perfect for kief (fine powder) and solid material. 37 Micron is also the smallest size for flower, ideal for the highest quality flower extracts. 
  • 70/90 Micron -  70 Micron is used for high quality flower extracts with a little higher yield than 37 Micron but lower quality. 90 Micron is the regular smaller size used for flower, this gives a good balance of quality and yield.  
  • 120 Micron - This is the maximum size generally used for dried flower and will provide a full spectrum extract with maximum yield
  • 160 Micron - Maximum flower yield, will also allow through some particles, these are great if you have slightly more humid material which won't break up and want a quick full spectrum extraction. 


Why Use a Bag? 

  • Press Bags can improve the amount of pressure placed on your material, with smaller presses this can translate into increased yield. 
  • Bags can take around 10g when used with a puck maker and 7g when used normally, increasing the amount you can press in one go. 
  • Used properly bags improve yield consistency as you can always apply the same amount of pressure. Being trapped in a bag the pressure on your material is also more even stopping rosin becoming trapped in less dense areas. 
  • Bags can improve yield. Think about it like this, if you have a puck/chip that's been pressed there is usually a little rosin left at the edges, naturally the edges of a puck will be less dense than the centre due to the material spreading. In a bag this isn't the case as the material is forced up against the bag, applying more constant and even pressure to the edges (due to it being pressed against the bag) and leaving less of a thin edge for concentrate to be trapped in. Combine this with pressing larger quantities in a bag and the result is this - instead of repeatedly having small losses over multiple pressings you have one relatively smaller loss in one single pressing (or pressing session if you then fold and re-press), slightly increasing your yield. There are also often less losses in collection/transfer when pressing larger amounts less regularly. 
  • Bags improve flavour. As there is less plant matter to burn due to it being filtered out by the bag, your vapour quality is improved (plant combusts at lower temps than concentrate so this is very common). This not only tastes better but is better for you. 
  • Coil lifespan is improved (for non bucket setups). This is once again due to reduced levels of plant matter burning onto and gumming up your coils, keeping them cleaner, making them easier to clean and helping them taste better for longer! 

These bags are a great size for use with the Dulytek Pre-Press Mold Puck Maker when using the bottle tech pressing method as they allow the material to spread out without putting too much pressure on the bag. When using smaller bags we've had them blow out often. 


Top Tips

Look up bottle tech. This is a method where the corners of the bags are folded in and bags are used vertically increasing the effective pressure on your material. Doing this allows larger amounts to be pressed with smaller presses. 

Look up chottle tech. This is where you cut your bags into tubes to use one bag for multiple pressings. 

Make pucks using a puck maker, then compress them to just less than the size of the bag so they can still be fitted in and the bag pressed vertically. This way you can stack multiple compressed pucks on top of each other in a bag and get 12g in one bag. You can put the puck in the bag, compressing it in the bag, then adding another slightly smaller puck on top in the bag, compressing this, folding the over then pressing for your extraction. Using this method it's possible to fit 12g into these bags. We suggest pressing over 5+ mins at lower temps (around 8OC) using the drip tech method if possible. Be warned this will stress your bags past their in tended design so you have to be careful not to apply too much pressure too fast or they will blow out! 

If using bottle tech with multiple pucks always press slowly, applying pressure in stages. You do this to allow the material to heat and soften and for rosin to escape the bag, skipping this and applying lots of pressure at one will often result in bag blowouts or reduced yields. Concentrate needs to be given time to move from the centre to the edges of the puck, the more material there is and the more compressed the puck, the longer this takes.

Drip tech is a method that allows you to preserve the smell and flavour of your rosin by allowing it to move away from the heated plates more quickly. This is done by using the press at an angle or completely horizontal (yep on its side), which is best and often easiest. 

Customer Reviews

Based on 1 review
Shaun Davison
Good product

Good product and reasonable price, really fast service too. Would definitely use Recommended vape supplies again