WIWA Series 521 40:1 4640 PSI WIWA Vulkan Extrusion Pump - Carbon Version

WIWA Series 521 40:1 4640 PSI WIWA Vulkan Extrusion Pump - Carbon Version

Marsoni

M251S

$6491.50

Get it in 3 business days with 1 day shipping. Friday, May 29

WIWA Series 521 40:1 4640 PSI WIWA Vulkan Extrusion Pump - Carbon VersionVULKAN the tried and tested WIWA extrusion pumps for transfer, metering and application of adhesives, insulating materials and sealants The WIWA VULKAN range of shovel type piston pumps covers a total of 19 pumps with outputs and pressure ratios in five performance classes and is thus one of the most extensive series worldwide. The pumps have an output per double stroke of up to 680 ccm and pressure ratios from 13: 1 to 94: 1. The pumps are

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So far this has been a big improvement from a different brand cold brew maker I had. It is simple and easy to used doesn’t leak. The coffee comes out tasting great! It has a smart design that works well. It’s a great deal for how well it works. It is big enough to last all week but not take up to much space in the fridge.

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Reviewed in the United States on October 27, 2025

Verified Purchase

Finn

Lowell, US

★★★★★ 1

Air gets trapped in the filter so it won’t fully steep

Color: Black, Size: 40 oz

Filter doesn’t let air out. It’s weird about all these positive reviews bc I tried cold brewing tea two times overnight but the filter holes are so small that basically it traps a large air bubble inside with the tea leaves. The water was barely steeped. It was weird enough to the point where I thought there must be a clear film on the filter that I hadn’t removed. When I loosen the lid all do the air rushes out and it fills w water, but when you tighten the lid any air inside with your grounds/leaves is trapped and prevents steeping. I kept thinking it was me based on all of these positive reviews but I could not prevent the massive about of air from getting trapped in the filter. If they made the holes bigger (not too big to let grounds out but currently you could mistake it for plastic film) then it would’ve been perfect. Nice size and about what I’d drink in a day or so. Change the filter hole size to let air flow out and I’ll buy it back!

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Reviewed in the United States on May 16, 2026

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Timothy Mousseau

Lake Worth, US

★★★★★ 5

Neat gadget

Color: Gold

Neat little gadget. Works great, easy to use and has a light indicator for temperature range. Keeps a cup of liquid hot right to the bottom.

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Reviewed in the United States on May 29, 2026

Verified Purchase

Ctg1363

Belleville, US

★★★★★ 5

My tea stays warm to the bottom of the cup!!!

I am so glad I purchased this mug water. I drink tea all day but it cools down quickly. Since I purchased this mug warmer my tea stays hot to the bottom of the cup. The temperature is adjustable so you can keep your drink at your desired temperature. The top is glass and wipes clean easily. I like the rubber gasket that fits on top of the warmer. It keeps your mug in the center of the warmer and should you have a spill it catches the liquid. I've been using it every day for over a month now and it's going strong and is reliable. Perfect for personal use or as a gift.

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Reviewed in the United States on May 2, 2026