Haviland DuraChlor Full Season Chemical KitMaintain clean, balanced, and algae-free water all season long with this all-in-one chemical supply kit—...

Durachlor 3” Tabs: Compressed stabilized 8 ounce tablets for water. 90% available chlorine. Contains trichlor. Features: Stabilized ch...

Durachlor 56 Granular: Fast dissolving stabilized chlorine granules intended for daily application to water. Features: 56 percent...

Spot Stain Chalk (C005931-CS8X1K) is a versatile stain remover designed for use in pools and spas. Features: Compatibility: Suitable for use on ...

Durachlor C008025-BX25L 25 lb. 3" Slow-Dissolving Stabilized Chlorine A chlorinating concentrate for swimming pools. Stabilized chlorine. This prod...

Activator Plus: Improves water clarity, increases filtration efficiency, and decreases maintenance in pool water. Once it’s in your done! Features:...

Durachlor C002831-PL20 20 Lb. Activator Enhancer Activator is specially formulated to enhance water quality by improving filtration and controlling...

Durachlor C002282-CS20P5 1 Lb 56% Quick Shock Applications: Suitable for pool openings and closings, 1lb Fast-Acting Chlorine Granules: Provide ...

Durachlor C002599-PL50 50 Lb. pH Down Lowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6. Active Ingredient: Sodium Bisulfate Gr...

Durachlor C002832-PL45 45 Lb. Activator Enhancer Plus Activator Plus makes the water feel soft and look crystal clear without having to adjust the ...

Durachlor C002837-CS20B2 2 Lb. Stain Eliminator Dry formula that works extremely fast to remove staining due to copper, iron, and manganese. This p...

Durachlor C002833-CS20B2 2 Lb. Chlor Out Chlorine Neutralizer Quickly reduces excess bromine and chlorine levels from the pool water. Great for use...

Durachlor C002769-CS20Q 32 Oz. Super Fall Out Durachlor's fastest acting and most concentrated liquid flocculent for swimming pool water. Water cla...

Durachlor C002767-CS20Q 32 Oz. Filter Cleaner Hard-working, deep-penetrating cleaner that degreases all filters without harm to the media. This pro...

Durachlor C008024-BX50L 50 lb. 3" Slow-Dissolving Stabilized Chlorine A chlorinating concentrate for swimming pools. Stabilized chlorine. This prod...

Durachlor C002599-PL25 25 Lb. pH Down Lowers pH and alkalinity in the pool water: Ideal range is 7.2-7.6. Active Ingredient: Sodium Bisulfate G...

Durachlor C007338-CS20Q 32 Oz. Algae Kil CB 7.4  This algaecide provides effective prevention and control of algae growth in all types of swimming ...

Haviland Durachlor 25 lb Chlor Out Chlorine Bromine Tabs Remover Reducer, C002833-PL25 Chlor Out: Quickly reduces chlorine and bromine levels in wa...

Durachlor Algae Kil 10 – Pool Algaecide & Algae Prevention Treatment Algae Kil products are compatible with all sanitizing and maintenance syst...

Durachlor C003654-CS6X1K20K Chlorinated Winter Kit, Treats 20K The Haviland 20K Gallon Winter Closing Kit is designed for pools up to 20,000 gallon...

Durachlor C002552-CS77C2 5 Lb. pH Increaser Increases the pH of pool water for proper balance. Ideal range is 7.2-7.6. Active Ingredient: 100% So...

Durachlor C003222-CS20Q 32 Oz. Rust-N-Scale Crystallizes metals in the water, allowing the filter to remove them from the pool water.  This product...

Durachlor C002902-CS20Q 32 Oz. PhosAway Phosphate Remover Concentrated to help remove the amount of phosphate through filtration. This product is d...

Durachlor C003360-CS20Q 32 Oz. Metal Wizard Chelates metal particles and prevents staining of pool surfaces. This product is designed to remove met...

Durachlor C002599-CS20B4 3 Lb. pH Down Lowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6. Active Ingredient: Sodium Bisulfate G...

Durachlor C002711-PL25 25 Lb. Calcium Hardness Increaser Raises calcium hardness to prevent long-term damage to the pool and its equipment. Ideal r...

Durachlor C002832-PL20 20 Lb. Activator Enhancer Plus Activator Plus makes the water feel soft and look crystal clear without having to adjust t...

Durachlor C002552-CS20B2 2 Lb. pH Increaser Increases the pH of pool water for proper balance. Ideal range is 7.2-7.6. Active Ingredient: 100% So...

Durachlor C002641-CS20P2 1 Lb. Chlorine Stabilizer Prevents loss of chlorine to the ultraviolet rays of the sun. Reduces pool operating costs. The ...

Durachlor C002599-CS74C2 14 lb pH Down Lowers pH and alkalinity in the pool water. The deal range is 7.2-7.6. Active Ingredient: Sodium Bisulfate...

Durachlor C002641-CS77C1 4 Lb. Chlorine Stabilizer Prevents loss of chlorine to the ultraviolet rays of the sun. Reduces pool operating costs. Idea...

Durachlor C003363-CS20Q 32 oz. / 2 lb. Spot Stain Remover A thick, concentrated formula that will cut through most surface stains. This product is ...

Durachlor C003163-CS20Q 32 oz. / 2 lb. Concentrated Clarifier Water additive for clearing hazy water quickly by removing small un-filterable partic...

Durachlor C003283-CS20Q 32 oz / 2 lb Anti-Foam Quickly eliminates foam from pool and spa water. Continued use will prevent foam from returning. It ...

Durachlor C002837-CS20B2 2 Lb. Stain Eliminator Dry formula that works extremely fast to remove staining due to copper, iron, and manganese. This p...

Durachlor C002599-CS74C2 14 lb pH Down Lowers pH and alkalinity in the pool water. The deal range is 7.2-7.6. Active Ingredient: Sodium Bisulfate...

Durachlor C002641-CS74C1 10 Lb. Chlorine Stabilizer Prevents loss of chlorine to the ultraviolet rays of the sun. Reduces pool operating costs. The...

Durachlor C002711-CS74C1 10 Lb. Calcium Hardness Increaser Raises calcium hardness to prevent long-term damage to the pool and its equipment. Ideal...

Durachlor 10 lb. Alkalinity Increaser, C002669-CS74C1 Dry, granular product used to raise total alkalinity. The ideal range is 80-120 ppm. Active...

Durachlor C002711-CS77C1 4 Lb. Calcium Hardness Increaser Raises calcium hardness to prevent long-term damage to the pool and its equipment. The id...

Durachlor C002669-CS77C2 5 Lb. Alkalinity Increaser  Dry, granular product used to raise total alkalinity. Ideal range is 80-120 ppm. Active Ingr...

Durachlor C002641-PL25 25 Lb. Chlorine Stabilizer Prevents loss of chlorine to the ultraviolet rays of the sun. Reduces pool operating costs. Ideal...

Durachlor C002552-CS74C1 10 Lb. pH Increaser Increases the pH of pool water for proper balance. Ideal range is 7.2-7.6. Active Ingredient: 100% S...

Durachlor C008024-CS77C1 4 lb. 3" 90% Slow-Dissolving Stabilized Chlorine A chlorinating concentrate for swimming pools. Stabilized chlorine. Th...

Durachlor C003359-CS20Q 32 Oz. Cover Cleaner Cleaner and deodorizer for vinyl, solid and mesh covers. This product is a concentrated liquid formula...

Haviland DuraChlor 62% Fast-Dissolving Stabilized Chlorine Granules, Sodium Dichlor, 2 lb, C003610-CS20B2 Features: Fast acting Provides 62% avail...

Durachlor Algae Kil 10 – Pool Algaecide & Algae Prevention Treatment Algae Kil products are compatible with all sanitizing and maintenance syst...

Durachlor C002831-PL45 45 Lb. Activator Enhancer Activator is specially formulated to enhance water quality by improving filtration and controlling...