Looking for a Calgon Carbon alternative? This article compares FILTRASORB 820 and FILTRASORB 400 — Calgon Carbon's flagship bituminous-coal granular activated carbons — against equivalent Yihang Carbon grades YH-900 and YH-1050, spec by spec. See how iodine number, abrasion resistance, effective size, mesh cuts, moisture, and floating rate stack up, and why Yihang Carbon meets or exceeds FILTRASORB performance for drinking water, wastewater, groundwater remediation, and industrial purification. With factory-direct pricing 30–50% lower, free samples, batch COAs, and custom density or acid-washed options, Yihang Carbon offers a like-for-like drop-in replacement. Request a matched spec sheet and sample today.
If you are sourcing Calgon Carbon FILTRASORB granular activated carbon for drinking water, wastewater, or industrial purification, you already know the pain points: long lead times, distributor markups, and limited flexibility on mesh cuts. The good news is that FILTRASORB is a reagglomerated bituminous-coal GAC — a well-defined product category that experienced manufacturers can match spec-for-spec.
In this article, we put two flagship FILTRASORB grades — the coarse FILTRASORB 820 (8×30) and the fine FILTRASORB 400 (12×40) — side by side with their Yihang Carbon equivalents, line by line, so you can judge for yourself whether a Calgon Carbon alternative makes sense for your plant.
Yihang Carbon manufactures coal, coconut and wood activated carbon in granular, crushed, columnar and powdered forms — matching the raw material and physical form of every Calgon Carbon grade, including the FILTRASORB series.
1. What FILTRASORB 820 Actually Is
FILTRASORB 820 is a reagglomerated bituminous-coal GAC designed primarily as a dual-purpose media — filtration plus adsorption — for surface water treatment where pressure drop is a concern. It targets taste and odor compounds, organic color, TOC, TCE, PCE, and PFAS.
| Parameter |
FILTRASORB 820 |
| Iodine Number |
900 mg/g (min) |
| Moisture |
2% (max) |
| Effective Size |
1.0–1.3 mm |
| Uniformity Coefficient |
1.5 (max) |
| Abrasion Number |
75 (min) |
| Screen Size |
On 8 mesh: 5% (max); Through 20 mesh: 4% (max) |
| Apparent Density |
0.58 g/cc |
| Water Extractables / Non-Wettables |
<1% |
2. What FILTRASORB 400 Actually Is
FILTRASORB 400 is the higher-activity, finer-mesh sibling in the same bituminous-coal family. With a smaller effective size and tighter screen cuts, it is engineered for liquid-phase applications requiring faster adsorption kinetics and greater surface-area contact — drinking and process water purification, wastewater, food, pharmaceutical, and industrial streams.
| Parameter |
FILTRASORB 400 |
| Iodine Number |
1,000 mg/g (min) |
| Moisture |
2% (max) |
| Effective Size |
0.55–0.75 mm |
| Uniformity Coefficient |
1.9 (max) |
| Abrasion Number |
75 (min) |
| Screen Size |
On 12 mesh: 5% (max); Through 40 mesh: 4% (max) |
| Apparent Density |
0.57 g/cc |
| Water Extractables / Non-Wettables |
<1% |
Both grades are formulated to comply with AWWA B604, NSF/ANSI 61 extractable metals limits, and the Food Chemicals Codex.
3. The Yihang Carbon Counterparts
Yihang Carbon (Zhengzhou Yihang Water Purification Material Co., Ltd.) manufactures coal-based granular activated carbon from selected bituminous coal using the same activation and sizing logic as FILTRASORB: high activity, durable granules, low floaters, and repeatable backwashing performance. For this two-grade comparison we use:
Need Activated Carbon?
Get Factory?Direct Pricing — No Middlemen
30 years manufacturing. MOQ 1 ton. Free samples. Reply within 1 hours.
4. Spec-by-Spec Comparison
| Parameter |
Calgon FILTRASORB 820 |
Calgon FILTRASORB 400 |
Yihang YH-900 |
Yihang YH-1050 |
| Raw material |
Bituminous coal, reagglomerated |
Bituminous coal, reagglomerated |
Bituminous coal (selected / blended) |
Bituminous coal (blended, optimized pore structure) |
| Iodine Number |
900 mg/g (min) |
1,000 mg/g (min) |
≥900 mg/g |
≥1,000–1,050 mg/g |
| Standard Mesh |
8×30 (effective size 1.0–1.3 mm) |
12×40 (effective size 0.55–0.75 mm) |
8×30 (4×8 / 12×40 / 30×60 available) |
12×40 (custom cuts available) |
| Moisture |
2% (max) |
2% (max) |
<3% (≤2% on request) |
<3% (≤2% on request) |
| Hardness / Abrasion |
Abrasion No. 75 (min) |
Abrasion No. 75 (min) |
Hardness ≥95% |
Hardness ≥95% |
| Apparent Density |
0.58 g/cc |
0.57 g/cc |
470±30 g/L (0.44–0.50 g/cc) |
420–450 g/L (0.42–0.45 g/cc) |
| Ash Content |
Not published |
Not published |
5–10% (acid-washed option available) |
8–15% (acid-washed option available) |
| Floating Rate |
Non-wettables <1% |
Non-wettables <1% |
0% floating |
0% floating |
| Methylene Blue |
Not specified |
Not specified |
≥160–180 mg/g |
≥220 mg/g |
How to read this table honestly:
-
Adsorption capacity: FILTRASORB 820 sets the floor at iodine 900; FILTRASORB 400 raises it to 1,000. YH-900 meets the 820 floor directly, while YH-1050 meets — and slightly exceeds — the 400 baseline. Both Yihang Carbon grades give you the headroom to maintain or extend bed life.
-
Durability: Both FILTRASORB grades cite abrasion number 75 (min). Yihang Carbon coal GAC is produced with hardness ≥95%, engineered for low pulverization and zero floating — directly addressing the repeated backwashing and hydraulic-transport abrasion that the FILTRASORB datasheets emphasize.
-
Density: FILTRASORB 820 and 400 are high-density formulations at 0.57–0.58 g/cc. Yihang's standard crushed carbon runs 0.42–0.50 g/cc depending on activity level. If your vessel design is built around volume-based adsorption capacity (kg per ft³), request a densified blend from Yihang — they can adjust formulation to approach the FILTRASORB density target.
-
Mesh and effective size: the 1.0–1.3 mm and 0.55–0.75 mm effective sizes correspond to standard 8×30 and 12×40 US sieve cuts, both stock sizes for Yihang Carbon — no custom tooling required.
Bottom line: on the parameters that determine real-world performance in a GAC bed — activity, hardness, mesh cuts, moisture, floaters — Yihang Carbon meets or exceeds both FILTRASORB 820 and FILTRASORB 400 specifications. The only honest gap is apparent density, which is a formulation variable, not a manufacturing ceiling.
5. Applications: Where the Yihang Alternative Drops In
Like FILTRASORB, Yihang's coal GAC covers the identical duty list across both mesh grades:
-
Municipal drinking water — taste & odor, DBPs, TOC, dual-purpose filtration/adsorption
-
Industrial wastewater, pond/aquarium, and groundwater remediation (TCE, PCE, pesticides)
-
Food & beverage, pharmaceutical, and environmental water processing
-
Water reuse and bottling & brewing
Because the raw material (bituminous coal), the form (crushed/reagglomerated GAC), and the mesh families (8×30 and 12×40) are the same, the switch is a like-for-like media replacement, not a process redesign.
6. Why Buyers Switch from Calgon Carbon to Yihang Carbon
-
Factory-direct pricing. Buying FILTRASORB means paying for a global brand, distribution network, and reactivation infrastructure you may not use. Yihang Carbon manufactures in-house; equivalent-duty coal GAC typically lands 30–50% lower on a per-ton basis.
-
Published COA per batch, not just a catalog name. Every Yihang shipment ships with a Certificate of Analysis — iodine number, methylene blue, hardness, ash, moisture, apparent density — tested against standard methods. You compare numbers, not logos.
-
Customizable where Calgon is rigid. Need acid-washed grade for low-pH liquid purification? A densified 0.57 g/cc cut to mirror FILTRASORB 400 exactly? A blended-coal pore structure with molasses value >240 mg/g for larger-molecule adsorption? Yihang Carbon builds to the spec instead of asking you to fit the spec.
-
Low MOQ and free samples. Kilogram-scale samples let you run a side-by-side column test — same feed water, same EBCT — against your current FILTRASORB charge before committing volume.
-
Compliance support. Yihang carbon can be produced and tested to align with AWWA B604 and the Food Chemicals Codex, with third-party test reports available on request. Verify NSF/ANSI 61 certification status for your specific drinking-water project with our team before bid.
Coal-based granular activated carbon from Yihang Carbon — matching Calgon's FILTRASORB water treatment grades.
7. How to Validate the Switch (5 Steps)
-
Pull the TDS/COA of the FILTRASORB grade you currently run (820, 400, or any other).
-
Send it to Yihang Carbon with your annual volume; receive the matched grade (YH-900, YH-1050, or a custom blend) with spec sheet and FOB quote within 24 hours.
-
Test the free sample: iodine number, hardness, apparent density, and a jar or column test on your actual water.
-
Pilot in one filter cell or adsorber; track pressure drop, breakthrough, and fines over 4–8 weeks.
-
Scale up. Standard grades ship in 7–10 days production; custom specs in 15–20 days.
Looking for a Calgon Carbon Alternative?
Tell us which Calgon grade you currently run — Filtrasorb, BPL, Centaur or any other — plus your mesh, duty and annual volume. We'll send the matched Yihang Carbon spec sheet, COA and pricing within 24 hours — typically 30–50% below your current landed cost — and ship a free sample for your own side-by-side test.
8. FAQ
Is Yihang Carbon a true drop-in Calgon Carbon alternative?
For coal-based GAC water and wastewater duties — yes. Same raw material, same form, same mesh families, equal or better activity and hardness. Validate with a side-by-side test before switching full volume.
Which FILTRASORB grades can Yihang match?
The FILTRASORB family is split by mesh and density. The 8×30 coarse grades like FILTRASORB 820 map to YH-900; the 12×40 fine high-activity grades like FILTRASORB 400 map to YH-1050; acid-washed or densified variants are produced on request.
What about reactivation?
FILTRASORB is sold with a reactivation services model. Yihang Carbon's economics work differently: factory-direct virgin carbon priced so that replacement is competitive with round-trip reactivation logistics — while Yihang carbon itself is fully reactivatable if you run thermal regeneration in-house.
What's the MOQ?
Standard coal GAC grades from 1 ton; free lab samples before any bulk order.
EN
