Concrete Extensions | Plastic Risers |
24 ID 29 OD 6″ H | 6″ H |
24 ID 29 OD 12″ H | 12″ H |
24 ID 29 OD 18″ H | Filters |
24 ID 29 OD 24″ H | GF-10 |
24 ID 29 OD 36″ H | A – 100 |
20 ID 24 OD 12″ H | PL – 525 |
20 ID 24 OD 18″ H | Bear Onsite |
20 ID 24 OD 24″ H | Lifetime Filter |
Dist. Box Riser 20″ |
Conversion Risers |
6″ Concrete With Plastic = 11″ |
12″ Concrete With Plastic = 17″ |
18″ Concrete With Plastic = 23″ |
24″ Concrete With Plastic = 29″ |

Plastic Extensions: 6″ and 12″ Plastic Covers Also Available

Conversion Riser: Has Plastic formed into Concrete for Converting Concrete to Plastic. Multiple Height options, starting at a total of 11″

Concrete Extensions: Multiple Heights available. 29″ OD or 24″ OD

Small Conversion Risers. Total of 11″

Example of a Concrete Cover. Most common Size, 29″ OD. Other Sizes available.

Small Concrete Extension. 6″ H