Filter Gravel

Ricci Bros. Filter Gravel Features

  • Full range of sizes that meet AWWA B100 and NSF 61 standards
  • Clean, natural, rounded gravel (not crushed)
  • High specific gravity for hardness and chemical resistance
  • Packaged for convenient installation
  • QC program ensures sampling, testing and verification
  • Product delivered on-site and on-time
  • Clean, washed 3/8 pea gravel and 3/4 septic now available (call with the volumes of material you need)

How to Purchase

For large and medium size gravels please please provide us with the top and bottom sizes in inch or mm (e.g., 1/2 x 1/4 or 6-12 mm)

For finer gravels please provide us with the top and bottom ASTM E11 sieve openings or the mm openings ( 6x14 or 1.40-3.35mm)

Available Sizes
Fine Gravel Medium Gravel Coarse Gravel
6 x16
(1.2 - 3.4mm)
1/4 x 6
(3.4 - 6.3mm)
3/4 x 1/2
(12 - 19mm)
6 x 14
(1.4 - 3.4mm)
3/8 x 3/16
(4.8 - 9.5mm)
1 x 1/2
(12 - 25mm)
6 x 12
(1.7 - 3.4mm)
1/2 x 1/4
(6.3 - 12mm)
1 x 5/8
(16 - 25mm)
4 x 12
(1.7 - 4.8mm)
5/8 x 3/8
(9.5 - 16mm)
1-1/2 x 3/4
(19 - 37mm)
4 x 10
(2.0 - 4.8mm)
3/4 x 3/8
(9.5 - 19mm)
> 1 in.
(> 25mm)

Other Properties

Specific gravity (ASTM C128): >2.50 Sodium Soundness (ASTM C88): <15%
Acid Solubility (AWWA B100): < 5% Test for Clay (ASTM C40 or C117): plate 1 and 2
Hardness (Mohs Scale): 6-8 Unit Weight and Voids (ASTM C29): 100 lb/cu ft
Sphericity and Roundness (API RP56): 0.6 Chemical Analysis: SiO2: 98-99; Al2O3: 0.03-0.3, Fe2O3: 0.03-0.3, Na2O, K2O, TiO2, MnO2, MgO: to 0.05.