Specifications
| Media type | Black nodular granules; silica core, manganese-dioxide-coated catalytic surface |
|---|---|
| Target contaminants | Iron, manganese, hydrogen sulfide, arsenic, radium |
| Screen grading | 18 x 60 mesh (dry) |
| Effective size | 0.30 to 0.35 mm |
| Uniformity coefficient | Less than 1.60 |
| Specific gravity | Approximately 2.4 |
| Apparent density | 88 lb/cu. ft. (1410.26 kg/m³) |
| Service flow rate | 2-12 gpm/ft² (4.9-29.4 m/hr) |
| Backwash rate | Min 12 gpm/ft² at 55°F |
| Bed expansion (backwash) | 40% until effluent clear, or 10 min |
| Minimum bed depth | 30 in alone, or 15 in per layer in dual-media beds |
| pH range | 6.2-8.5 (below 6.2 requires pre-pH adjustment) |
| Maximum temperature | No limit |
| Certification | WQA Gold Seal — NSF/ANSI/CAN 61 (material safety) & NSF/ANSI 372 (Lead Free) |
GreensandPlus operates in Catalytic Oxidation (CO) mode — chlorine or another strong oxidant is fed upstream to keep the media continuously regenerated — or in Intermittent Regeneration (IR) mode. Typical capacity is 700-1200 grains of oxidized iron and manganese per ft² of bed area. Unlike many media, it needs no extended startup or preconditioning.
Related equipment we stock
RhinoSand™ Zeolite
Media: clinoptilolite zeolite | Size: 0.4-1.4 mm (~14x40 mesh) | Bulk density: 55 lb/ft³ | Use: silt/sediment/turbidity
UltraSorber™ Plus Media
50/50 organoclay + coconut GAC | 8x30 mesh | Iodine ≥1150 mg/g | Density 43-45 lb/ft³ | pH 4-10 | 50 lb
Activated Alumina for Fluoride Removal
Granular activated alumina | Al2O3 93% | Surface area 330 m²/g | Bulk density 48 lb/ft³ | Mesh 14x28 & 28x48
Activated Alumina for Arsenic Removal
Iron-enhanced activated alumina | Surface area 280 m²/g | Bulk density 66 lb/ft³ | Mesh 14x28 & 28x48 | NSF/ANSI 61