Katadyn TRK Drip Gravidyn Water Filter

by Katadyn

Product Features

• Practical filter for long-term use like camps and construction sites
• For 1 to 6 persons
• Gravity filter--convenient water filtration without pumping
• Comes with three combined ceramic and activated carbon filter elements
• Ceramic filters can be cleaned several times

Product Description

Amazon.com Product Description

The Katadyn TRK Drip Gravidyn free-standing gravity filter features a 10 liter water container for large quantities of water. It's ideal for the water supply for camps, cabins and homes without running water. This Gravidyn version comes with three combined ceramic and activated carbon filter elements.

Ceramic filters have a micro porous structure with impregnated silver which delays the growth of bacteria. The pore-size of Katadyn ceramic filters is 0.2 micron (0.0002 mm). Bacteria range in size from 0.2 to 5 micron and, like protozoa (1 to 15 micron), are efficiently filtered out. Ceramic filters can be mechanically regenerated and the filter capacity is measurable.

Activated carbon is used for its ability to reduce harmful organic and inorganic substances in the water. It removes unpleasant tastes, odors, chlorine, pesticides (lindane, DDT) and trihalomethanes (THMs). These substances adhere to the large surface area of the activated carbon. Activated carbon granulate cannot be regenerated.

Specifications:

• Technology: 0.2 micron ceramic depth filter
• Output: ca. 4 liters/hour
• Cartridge Capacity: Up to 150'000 l (depending on water quality)
• Carbon Capacity: Recommended to change after 6 months
• Weight: ca. 3.3 kg
• Size: 25 x 45 cm (9.8 x 17.7 inches)

Why Treat Water?
A crystal-clear stream or lake usually contains microorganisms that can make you sick. Water contaminants like protozoa, bacteria and viruses, can cause serious illness. Optimize your travel preparation and use a portable drinking water system from Katadyn.

About Katadyn
Katadyn of Switzerland has been producing high quality portable water systems since 1928. Their history has been one of innovation and durability. Katadyn products are used by militaries, health organizations and outdoor adventurers world-wide. No other water system provides higher quality or longer lasting performance. Katadyn is the global leader in portable water treatment. With subsidiaries in the United States, Germany, France, and Singapore; Katadyn develops, produces and distributes high quality products which are used whenever safe drinking water isn't available--for travel, camping and humanitarian operations.

Product Description

No pumping required - water container with built-in ceramic filters. Used and trusted by relief agencies around the globe for many years.

Product Details

• Product Dimensions: 11 x 11 x 18.2 inches
• Shipping Weight: 8.3 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0007U011G
• Item model number: 2110080
• Average Customer Review: 4.4 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #47,472 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • #45 in Sports & Outdoors > Outdoor Recreation > Camping & Hiking > Hydration > Water Filters

Customer Reviews

Most Helpful Customer Reviews

35 of 35 people found the following review helpful:

5.0 out of 5 stars Excellent filter, November 28, 2006

By 

Cadenza (SoCal, CA - USA) - See all my reviews

This review is from: Katadyn TRK Drip Gravidyn Water Filter (Sports)

I purchased the TRK Drip Filter (Gravidyn) as a gift for a relative (for home use) in southeast Asia whose water supply is from a well. The criteria were: ceramic element, compact, plastic or synthetic housing. As I've used Katadyn Combi Filter for backpacking and occasionally at home for 6 years, Katadyn was high on my list. IMO, ceramic elements give the best filtration. The initial cost is high but their value is realized through durability and long life. This unit has been in service since January '06, filtering ~10L/day or a total of ~3,300L (864 gallons) so far. The Activated Carbon (A/C) portion of the filter is effective for 6 months but the ceramic is good for 39,000 gallons (~148,980L). What I like most about this filter: fast flow rate (3 elements), impregnated silver-oxide prevents fungus/mildew growth on/in the element.

22 of 22 people found the following review helpful:

5.0 out of 5 stars Gold standard for water filtering, July 27, 2007

By 

Samuel M. Gon III "trilobitophile" (Honolulu, HI USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Katadyn TRK Drip Gravidyn Water Filter (Sports)

Ever since testing katadyn filters in Leptospirosis-laced waters in Hawaii, and then traveling for a month in India where the multi-filter katadyn was the household standard, I've been sold on their line of products. When it came time for me to consider a water filtration system for my home, I immediately investigated options and was delighted to find the reasonably-priced Gravidyn system on Amazon. Coupled with the free shipping it was soon apparent that this was the best option: the standard for the international red cross had better be good enough for my family! When the item arrived at my workplace, I couldn't help but assemble it and test the unit, and not only did it pass my own taste tests, but those of some very demanding colleagues at my office. I anticipate years of service, and with the reputation and stability of katadyn, I expect that parts and replacement filters will be readily available.

35 of 38 people found the following review helpful:

1.0 out of 5 stars Defective batch on a usually good product, October 20, 2007

By 

Hunter - See all my reviews

This review is from: Katadyn TRK Drip Gravidyn Water Filter (Sports)

I have owned one of these gravity filters for over 8 years and have never had a problem. This unit sold at Amazon is the same one I've had all these years. We used ours overseas while doing missionary work.

I ordered a new one recently from Amazon so we would have one while on furlough in the USA. Sadly I have returned two of them because the spout hole has been drilled too large. It's actually a bit oblong. It leaks if you don't tighten the spout down tight and leaks if you tighten it down because the washers collapse into the hole. I called Katadyn after the second time and asked for a new lower bucket with the correct size hole. They could not do this and told me to return it to Amazon.

Amazon has been great with the first exchange and now the return. It's just too bad that they got a bad lot recently. Hopefully you won't get one that is defective like the ones I got. It is not supposed to leak around the spout. If it does, return it.