Cobblestone

Cobblestone(gravel) filter media, commonly known as the support layer filter media or bedding filter media, divided into (natural)cobblestones and (machined) quartz gravel two kinds.cobblestone filter media is through the natural river mining, screening, washing and become, spherical pure white and miscellaneous colors, processing has a mechanism of cobblestones and quartz gravel. This product has no impurity density 2.66, silicon content 98.5%, mechanical strength 7.5, used in waterworks, mechanical filters, anion and cation exchange and other necessary materials. Mainly produced in Shandong Yi River.

Common Specifications：6-8mm、8-16mm、2-3cm、3-5cm、5-8cm、8-10cm、8-15cm、16-32cm、32-50cm；

Cobblestone filter media series for water treatment：4-8mm、8-16mm、16-32 mm；

Water treatment plant filter media bedding series:2-4cm、4-8cm、8-16cm、16-32cm、32-64cm；

Chemical plant acid-resistant corrosion-resistant special series: (natural cobblestones)5-8cm、8-12cm.

Smooth surface, bright color, color variety, black, white, yellow, red, green, blue, purple, cyan, in the water is quite beautiful, a lot of fish tanks at the bottom, have put a lot of pebble filter media, because the main ingredient contains silica as high as 98%, in the water to play a role in water purification, but also to play the ornamental value of this pebble filter media is the current dosage of the most, the largest, the market share as high as 80%, all used to Water purification, water filtration, water treatment. Henan Luoyang territory, there is this pebble filter media, good quality, recognized by users.