eVacuum 3D Printer Filament Storage Kit Filament Vacuum Bags Vacuum Compression Storage Bags, Prevent and Monitor Moisture - 10 Bags with 15 Desiccants, 15 Humidity Indicator Cards and 1 Hand Pump

These worked for me I have had them sealed for months and they hold a vacuum.

Great way to store filament, easy to see the different colors through the bag, good quality.

Update was contacted by seller after review left. They replaced defective product and now works as advertised. Great customer service.Pump never worked, basically its just a big ziplock bag. Will never purchase again

Two of the bags leaked from the start and was unable to use. The rest worked ok and held the vacuum at first. The pump was a challenge on some but I was able to make it work on them all. The problem is they didn't last. After pulling down some of the filament I hadn't touched since I sealed them had slowly leaked. Now after 9 months none of them will hold a vacuum. Nice idea just need better bags.I found the filament rolls will fit in FoodSaver bags so I've converted most to that now. Those are indestructible. I've used it for years for food that goes from freezer to boiling water without ever leaking. And they are cheaper too.

I purchased two boxes of these and found they work great to vacuum seal my filament. I’ve only had one bag lose vacuum in two years of use. It’s a bit of work to get the air out with the hand pump tho. Will definitely buy more.

This kit works great. I really only needed the pump and bags so I can't speak on the moisture measuring strips.In the past 2 years I've used maybe 5 full spools out of the 30+ I have accumulated. Since I have a lot of used spools I thought it was time to start storing them better since I wanted to avoid any potential dehydrating.I've had some wood PLA in a bag for months and has not lost it's seal. I also reused a bag multiple times for a roll of black eSun PLA.Even some new rolls lose their seal in less than a month. Considering that, I think this is an accessory all 3D printing hobbyists should have.

I use for my rolls of Filament for 3d printing it keeps it vacuum for a long time.

ORIGINAL REVIEW (See update below)--------------------------------------------If the pumps on the two kits I ordered didn't arrive cracked, I would have given this 4 stars.Pros:* Big bags easily fit my filament rolls.* Bags are well constructed, sturdy, and easy to zip.* Works with the accessory suction port of my FoodSaver vacuum sealer.* Kit includes handy humidity indicator and desiccants.Cons* The acrylic nozzle on the tip of the pump was cracked, preventing it from pulling a vacuum.* The above cracks were on two separate pumps. Manufacturer needs to package pumps better. They are just loose in the box.UPDATE (7/13/2021)------------------------Increased to 3 stars.Manufacturer reached out to me and provided a replacement kit. Norah from their customer service team was very polite, helpful, and quick to respond. The new kit also had a defective pump, but I was able to swap out parts from the original kit to get the pump working. Once I had a working pump, I was able to see just how easy the whole system was to use. You simply press the pump over the valve and start pumping. Assuming you've taken care to push out most of the air before sealing the bag, just a few pumps is all it takes to create a significant vacuum inside the bag. I've had my filament rolls sealed inside for several weeks with no visible loss of vacuum. I said before this would have been 4 stars with working pumps, but after some more experience, I can say it would have been 5. It's a shame that the pumps were such a problem, because the bags are great. I hope the manufacturer can resolve their pump issues and earn some 5 star ratings!

It works, is easy to use and was decently priced, that's all I really cared about.The pump doesn't seem too fragile either, no idea how some people were breaking them unless they either got unlucky and got a faulty one or went full 200lb gorilla on theirs.No instructions included though, but just zip the bags up with one of the clips and press the pump into the vent hole and go at it until you're satisfied or it starts to get more difficult. Sometimes the vent isn't fully compliant right away, but a few pumps in and it'll usually give way and become noticeably easier. Takes me about of minute to get most of the air out before it starts to get difficult and I stop.Pictured spool brand is AMZ3D for those possibly wondering.

-

Bags a good size to fit 1kg roll of filament, bags seal easily at top and pump works well to extract air from bag and bags stay sealed. How many times they can be resused is unknown as have not had them long but bags and seal at top are robust.

Bra

Ich nutze diese Vakuum Beutel für die Rollen meines 3-D Druckers. 1 kg Rollen passen hier problemlos rein. Das entleeren der Luft mittels der mitgelieferten Vakuumpumpe funktioniert einfach. Bei Bedarf werde ich mir wieder einige dieser Vakuum Beutel zulegen.