Replacement Gravel Underbed for Water Filters & Softeners – 10, 15, 20 & 50 lbs

High-quality replacement gravel underbed designed for water filters and softeners. Available in 10, 15, 20, and 50 lb bags, this graded gravel ensures proper flow distribution, prevents channeling, and extends the life of your filtration media. Suitable for carbon, calcite, birm, salt free descalers and softener systems.

Key Benefits:

• Provides a stable foundation for filter & softener media

• Improves water flow and prevents media loss

• Compatible with whole-house filtration and softening systems

• Offered in 10 lb, 15 lb, 20 lb & 50 lb bag sizes for flexibility