Replacement air filter cartridge is used for Breathing Airline Filter, which has a large capacity filter that removes moisture. The filter cartridge uses combed filter cotton, activated carbon particles, alumina, and other scientifically combined deep structures to filter, It can effectively capture water, oil and gas smell, and organic gas.

The usage of them is widespread in food, medicine, electronics, chemical, and other industries.

The filter cartridge-activated carbon filter material, which contains 100% surface adsorption capacity, can effectively remove a large number of odors and harmful gases.

The Replacement Air Filter Cartridge surpasses industry filtration standards, ensuring that your workers are protected from the harmful effects of inhaling contaminated air.  These filter cartridges are manufactured to precise specifications, guaranteeing the highest level of air filtration quality.  Additionally, they have the ability to effectively absorb moisture, oils, and odors.  It is recommended to replace these filters every 3 months or after 400 hours of use.

Zhuzhou Better Tungsten Carbide Company was founded in 2008 in Hunan Province, China. We start from tungsten carbide and expands its field to boron carbide and silicon carbide in the year 2012. The products are widely sold to the USA, Europe, Russia, the Middle East, and many other countries because of their good reputation.

BSTEC is our new brand, it is specialized in developing, manufacturing, and marketing advanced ceramics which widely used in industrial wear-resistance and ballistic protection areas. The production base is located in Zhejiang Longyou Industrial Zone. BSTEC's main products are silicon carbide and boron carbide ceramics, body armor inserts, industrial wear-resistance ceramic products.

The factory covers an area of 100 square meters with a total investment of 170 million RMB. Now the annual production capacity is 1,000 tons of silicon carbide ceramics, 500 tons of boron carbide ceramics, and 500,000 bulletproof inserts.

We have advanced production and test facilities. We have a professional technical team, sales team, producing team, and QC systems. We never stop researching and developing products according to the market to assure our customers' 100% satisfaction!

One try is eternity. Choose BSTEC, we will win together!

1. Are you a trading company or manufacturer?

We are a factory, mainly product tungsten carbide, boron carbide, and silicon carbide products. And we also do trading on related accessaries per customers' requirements.

2. How can we guarantee the quality?

Always a pre-production sample before mass production; Always final Inspection before shipment

3. Why should you buy from us, not from other suppliers?

Rich experience on product and exportingISO quality, good price and fast delivery wide production scope for optional; save cost, save energy, save time; gain high-quality products, gain more business opportunity, win the market!

4. How long is your delivery time?

Generally, it is 3~5 days if the goods are in stock; or it is 15-25 days if the goods are not in stock, depending on order quantity.

5. Do you provide samples? Is it free or extra?

Generally, we don't provide free samples. But we can deduct sample costs from your bulk orders.

6. What is your payment terms and method?

Payment Less than or equal to 1000USD, 100% in advance. Payment Greater than or equal to 1000USD, 30% T/T in advance, balance before shipment. We accept T/T, L/C, Alipay, PayPal, Western Union WeChat, and so on.