HTH Spa PH Increaser, 2-Lb.
![HTH Spa PH Increaser, 2-Lb.](https://media.farmstore.com/20191205163430/602126_000_001.png)
HTH, 2 LB, Spa PH Increaser, Raises PH & Prevents Corrosion, Active ingredient-Sodium Carbonate 98.9-99.0%.
![](https://i5.walmartimages.com/asr/bac59f22-a30c-4c13-9e24-acee07528274.77fa30d1f6a55a9e52f99dcd2772ec3f.png)
HTH Spa pH up, Increases pH for Spas & Hot Tubs, Powder, 2lb
![](https://c.shld.net/rpx/i/s/pi/mp/10469262/prod_26939220403?src=https%3A%2F%2Fimages.aceservices.com%2F81%2F98%2F8198244_A_V4.eps_High.jpg&d=9d4abddcaab5a0b2278576125229ce087023055e&hei=450&wid=450)
hth Pool & Spa HTH Spa Granule pH Plus 2 lb
![](https://c.shld.net/rpx/i/s/pi/mp/10469262/prod_26939220603?src=https%3A%2F%2Fimages.aceservices.com%2F81%2F98%2F8198244_A_V6.eps_high.jpg&d=525d395e885aa2f7dfa14cee21024af48e97de4d&hei=125&wid=125)
hth Pool & Spa HTH Spa Granule pH Plus 2 lb
![](https://i5.walmartimages.com/asr/9cae2548-1640-4791-9c4b-27b1ef501ac2.15457473ccd2cf3f51b9caa76068b1da.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Clorox Pool&Spa, Spa pH up- Increaser for Use in Spas and Hot Tubs, 18 ounces
![](https://i5.walmartimages.com/asr/f74d69cb-8f36-4745-b168-66457626b46e.adb57950aa5f5ec17f60c9e64a32fc84.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Clorox Pool&Spa, Spa pH up- Increaser for Use in Spas and Hot Tubs, 18 ounces
![](https://i.ebayimg.com/images/g/aVwAAOSwRPhblbHi/s-l1200.jpg)
Natural Chemistry 2 LB PH Increaser & 2 LB PH Decreaser Combo Pack Hot Tub Spa
![](https://4920-cdn.dib-moce-cdn.info/Data/ItemImage-804133-q5xbbo-f12s40-vl1p1.jpg?AutoCrop=1&CropHeight=140&CropWidth=140&Height=140&Padding=1&Quality=50&Resize=Auto&Revision=JFbq&Timestamp=M08wsG&Width=140)
HTH Spa Care pH Down 2.5 Lb. pH Decreaser Crystal - Alamo Lumber
![](https://i5.walmartimages.com/asr/33068e8a-8cfe-4893-8943-08bc11407b77.5d4d7e2790f5b5011836339e133cec60.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Green Gobbler Pool pH Plus - pH Increaser for Pools, Hot Tubs, Spas to Reduce Corrosion, Eye Irritation & Maintain Optimal pH Levels - 15 LBS
![](https://hthpools.com/cdn/shop/products/06-twice_a_week_656950bf-dbbd-4828-a765-48a19f5229f8_1946x.png?v=1650045245)
HTH™ Pool Care pH Up: pH Pool Increaser
![](https://m.media-amazon.com/images/I/91To8IfxBiL._AC_UF894,1000_QL80_.jpg)
Superpool Ph up, Ph Plus for Pool & Spa, Ph Increaser Granules for Swimming Pool, Fast-Dissolving Balancers 2,2 Lbs : Patio, Lawn & Garden
![](https://cdn11.bigcommerce.com/s-qz13ep5fb4/images/stencil/1280x1280/products/94072/240247/0dcee882-4688-460d-82e1-599603885832__99384.1674885324.jpg?c=1)
HTH Alkalinity Increaser Treatment
![](https://m.media-amazon.com/images/I/61XnRqBb72L._AC_UF894,1000_QL80_.jpg)
HTH Spa 86131 Alkalinity up, Spa & Hot Tub Chemical Raises Alkalinity, Stabilizes pH Fluctuation, 1.25 lbs : Patio, Lawn & Garden
Raises pH levels and prevents scale build up. Contains mineral crystals for a relaxing spa experience. Active ingredient-sodium carbonate 98.9-99.0%.
![](https://www.toolboxsupply.com/cdn/shop/products/10446220_a8b41779-2064-4a17-9940-97f9b0fa00a8_1200x.jpg?v=1571717548)
HTH® 86227 Spa™ pH Increaser, 2 Lb
![](https://m.media-amazon.com/images/I/81YQni-tr+L._SY350_PKmb-play-button-overlay_.png)
AquaDoc pH Increaser for Hot Tub - pH Up for Hot Tub Spa - pH Increaser Hot Tub Chemicals - Balance Your pH Up and Down Levels Effectively - Adjust
![](https://images.thdstatic.com/productImages/39e4007f-c2d2-4c43-a8e7-e72bbe1d8494/svn/hth-hot-tub-chemicals-86134-66_600.jpg)
HTH 2.25 lb. Spa Clear Pool Chlorinating Sanitizer 86134 - The Home Depot