---
product_id: 12276951
title: "Sandbag Training Workout Universal Fillers – Can be Filled with Either Sand or Water. Multiple Sizes – XXL, XL, Large, Medium, Small – Guaranteed not to Leak"
brand: "iron core athletics"
price: "211 zł"
currency: PLN
in_stock: true
reviews_count: 9
category: "Iron Core Athletics"
url: https://www.desertcart.pl/products/12276951-sandbag-training-workout-universal-fillers-can-be-filled-with-either
store_origin: PL
region: Poland
---

# Fill with sand or water, versatile Up to 20 lbs adjustable weight Industrial strength, leak-proof vinyl Sandbag Training Workout Universal Fillers – Can be Filled with Either Sand or Water. Multiple Sizes – XXL, XL, Large, Medium, Small – Guaranteed not to Leak

**Brand:** iron core athletics
**Price:** 211 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your grind with leak-proof, versatile fillers that flex with your fitness goals!

## Quick Answers

- **What is this?** Sandbag Training Workout Universal Fillers – Can be Filled with Either Sand or Water. Multiple Sizes – XXL, XL, Large, Medium, Small – Guaranteed not to Leak by iron core athletics
- **How much does it cost?** 211 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/12276951-sandbag-training-workout-universal-fillers-can-be-filled-with-either)

## Best For

- iron core athletics enthusiasts

## Why This Product

- Trusted iron core athletics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Fits medium and large power bags from multiple brands, making it your go-to filler solution.
- • **Compact & Portable Design:** Sized at 19"L x 4"W x 3"H, these fillers are easy to handle, store, and combine for progressive training.
- • **Core-Engaging Instability:** Water fill option creates shifting weight to activate stabilizer muscles and boost functional strength.
- • **Customizable Weight Control:** Fill with sand for max 20 lbs or water for dynamic 15 lbs resistance, perfect for tailored workouts.
- • **Durability Meets Reliability:** Crafted from industrial strength vinyl with a guaranteed 2-year leak-proof warranty—train worry-free.

## Overview

Iron Core Athletics Sandbag Training Universal Fillers are industrial-strength vinyl bags designed to be filled with sand or water, offering up to 20 lbs of adjustable weight. Sized at 19" x 4" x 3", they fit medium and large power bags from various manufacturers and come with a 2-year unconditional leak-proof warranty, making them a durable, versatile choice for professional-grade functional training.

## Description

desertcart.com: Sandbag Filler Bags - Universal 25lb Fillers, 19" X 3" - Sand or Water : Sports & Outdoors

Review: Great for PT exercises at home - I needed weights at home for PT and these are perfect because I can adjust the weight as needed. I'm recovering from back surgery and particularly use these for bridges to build strength. Right now I'm using the small and medium ones. The medium and large are a bit wobbly and unruly since they're so big. I am going to follow advice from other reviews and get a weight bag to put them in. That will make them easier to manage and I really like the idea of being able to combine the different sizes to increase weight as necessary. I think putting them in a weight bag will also encourage me to use them for other exercises as I build strength. These are awesome! I told my PT he should recommend them to patients who need something similar.
Review: Good Workout - Have only used them a couple of times because I just purchased them. I am using them for a workout challenge. Work great with water. I found them easy to fill using the faucet in the laundry sink. I didn't fill completely full because I wanted the water to move around so I would have to engage my core to stabilize the load. They seem to be durable, and no leaking.

## Features

- Two Small Size Universal Fillers for Sandbag Training
- Made of Industrial Strength Vinyl - Completely Leak Proof
- Fits Medium and Large Power Bags from Various Manufacturers
- Dimensions - 19"L x 4"W x 3"H -- Each bag weighs up to 20lbs when filled with Sand or 15lbs when filled with Water
- All Iron Core Athletics Universal Fillers come with an unconditional 2 Year Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00RH20L9E |
| Best Sellers Rank | #120 in Sandbags |
| Brand Name | Iron Core Athletics |
| Color | 19" x 4" - 15lb capacity (2 Pack) |
| Customer Reviews | 4.5 4.5 out of 5 stars (432) |
| Item Dimensions L x W x H | 19"L x 3"W x 4"H |
| Item Weight | 0.66 Pounds |
| Manufacturer | Iron Core Athletics |
| Material | Iron, Vinyl |
| Maximum Weight Recommendation | 20 Pounds |
| Style | Modern |
| UPC | 753677600331 |

## Product Details

- **Brand:** Iron Core Athletics
- **Color:** 19" x 4" - 15lb capacity (2 Pack)
- **Item Weight:** 0.66 Pounds
- **Manufacturer:** Iron Core Athletics
- **Material:** Iron, Vinyl
- **Maximum Weight Recommendation:** 20 Pounds
- **Product Dimensions:** 19"L x 3"W x 4"H
- **Style:** Modern
- **UPC:** 753677600331

## Images

![Sandbag Training Workout Universal Fillers – Can be Filled with Either Sand or Water. Multiple Sizes – XXL, XL, Large, Medium, Small – Guaranteed not to Leak - Image 1](https://m.media-amazon.com/images/I/819Bt7NHGVL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for PT exercises at home
*by K***K on March 8, 2023*

I needed weights at home for PT and these are perfect because I can adjust the weight as needed. I'm recovering from back surgery and particularly use these for bridges to build strength. Right now I'm using the small and medium ones. The medium and large are a bit wobbly and unruly since they're so big. I am going to follow advice from other reviews and get a weight bag to put them in. That will make them easier to manage and I really like the idea of being able to combine the different sizes to increase weight as necessary. I think putting them in a weight bag will also encourage me to use them for other exercises as I build strength. These are awesome! I told my PT he should recommend them to patients who need something similar.

### ⭐⭐⭐⭐⭐ Good Workout
*by D***S on February 28, 2020*

Have only used them a couple of times because I just purchased them. I am using them for a workout challenge. Work great with water. I found them easy to fill using the faucet in the laundry sink. I didn't fill completely full because I wanted the water to move around so I would have to engage my core to stabilize the load. They seem to be durable, and no leaking.

### ⭐⭐⭐⭐ Almost Perfect
*by M***E on October 19, 2022*

I have purchased multiple of these bags in various sizes, and they have all held up far longer than the "high end" filler bags put out by the best bag makers. I couldn't be happier with them, except in the larger sized 120# bag. Why is the fill port on the side? It makes it an absolute nightmare to fill up by yourself. In the pictures, they are all on the end (which is perfect). So, why the change on the bigger ones?

## Frequently Bought Together

- Iron Core Athletics Sandbag Training Workout Universal Fillers – Can be Filled with Either Sand or Water. Multiple Sizes – XXL, XL, Large, Medium, Small – Guaranteed not to Leak
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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-27*