Shock

Quickly eliminate contaminants and maintain clear water with pool shock treatments. Shop shock at Pool Supply 4 Less from brands including Super Shockwave, Leisure Time, Pool Care and BioLab. Popular picks include Super Shockwave 1 lb 73% Cal-Hypo and Leisure Time Leisue Time Renew Non-Chlorine Shock 2lbs.

  • Save 9%
    Leisure Time Leisue Time Renew Non-Chlorine Shock 2lbs. - RENU2
    Leisure Time Leisue Time Renew Non-Chlorine Shock 2lbs. - RENU2
    SKU: RENU2
    $37
    $41
    In stock
  • Save 57% Out of stock
    Pool Care Non-Chlorinationg Shock 1lb - QPC52201EACH
    Pool Care Non-Chlorinationg Shock 1lb - QPC52201EACH
    SKU: QPC52201
    $14
    $33
    Out of stock
  • Save 7% Out of stock
    Pool Care 1lb Shock 99% Dichlor 6 Bags - QPC551516
    Pool Care 1lb Shock 99% Dichlor 6 Bags - QPC551516
    SKU: QPC551516
    $79
    $85
    Out of stock
  • Save 13% Out of stock
    Pool Care 4lb Shock 99% Dichlor - QPC55154EACH
    Pool Care 4lb Shock 99% Dichlor - QPC55154EACH
    SKU: QPC55154EACH
    $69
    $80
    Out of stock
  • Save 34% Out of stock
    BioGuard Easy Shock & Swim 22825BIO
    BioLab BioGuard Easy Shock & Swim - 22825BIO
    SKU: 22825BIO
    $27
    $41
    Out of stock
  • Save 34% Out of stock
    BioGuard Smart Shock 22948BIO
    BioLab BioGuard Smart Shock - 22948BIO
    SKU: 22948BIO
    $27
    $41
    Out of stock
  • Save 33% Out of stock
    BioGuard Smart Shock 22947BIO
    BioLab BioGuard Smart Shock - 22947BIO
    SKU: 22947BIO
    $20
    $30
    Out of stock
  • Save 37% Out of stock
    BioGuard BurnOut 73 22860BIO
    BioLab BioGuard BurnOut 73 - 22860BIO
    SKU: 22860BIO
    $17
    $27
    Out of stock
  • Save 28% Out of stock
    Pool Care Non-Chlorinationg Shock 1lb 6 bags - QPC522016
    Pool Care Non-Chlorinationg Shock 1lb 6 bags - QPC522016
    SKU: QPC522016
    $54
    $76
    Out of stock
  • Save 53% Out of stock
    BioGuard Oxysheen 22841BIO
    BioLab BioGuard Oxysheen - 22841BIO
    SKU: 22841BIO
    $14
    $30
    Out of stock
  • Save 42%
    Pool Season 47251330 1 lb Non-Chlorine Shock Oxidizer
    Suncoast Pool Season 1 lb Non-Chlorine Shock Oxidizer - 47251330
    SKU: 47251330
    $14.99
    $26
    In stock
  • Save 29%
    Suncoast Pool Season Chlorinator Concentrate 12000141 50# - 47251320
    Suncoast Pool Season Chlorinator Concentrate 12000141 50# - 47251320
    SKU: 47251320
    $289
    $409
    In stock
  • Save 33%
    Oxy Splash Non-Chlorine Shock 25 lb Pail | OXSP25
    APi Oxy Splash Non-Chlorine Shock 25 lb Pail - OXSP25
    SKU: OXSP25
    $217.95
    $327
    In stock
  • Save 33%
    Oxy Splash Non-Chlorine Shock 2 lb Bottle 12/Case | OXSP2
    APi Oxy Splash Non-Chlorine Shock 2 lb Bottle - OXSP2
    SKU: OXSP2
    $34.60
    $52
    In stock
  • Save 36%
    Leisure Time Renew Non-Chlorine Shock 5lbs - RENU5
    Leisure Time Renew Non-Chlorine Shock 5lbs - RENU5
    SKU: RENU5
    $69
    $109
    In stock
  • Save 37%
    Leisure Time® E5 Chlorinating Concentrate Granules 5 lb
    Applied Biochemists Leisure Time® Chlorinating Concentrate Granules 5 lb - E5
    SKU: E5
    $69
    $110
    In stock
  • Save 34%
    Lt Brominating Granular Hazmat 2 Lb | 45436A
    Applied Biochemists Leisure Time 2lb Brominating Granular - 45436A
    SKU: 45436A
    $31
    $47
    In stock
  • Save 33%
    SeaKlear Balanced Shock Oxidizer, 2 lb | 90614SKR
    SeaKlear Balanced Shock Oxidizer, 2 lb - 90614SKR
    SKU: 90614SKR
    $31.70
    $48
    In stock
  • Save 26%
    Suncoast Pool Season Chlorinator Concentrate 25#
    Suncoast Pool Season Chlorinator Concentrate 25# - 47251310
    SKU: 47251310
    $165
    $225
    In stock
  • Save 14%
    Leisure Time Spa 56 Dichlor Chlorinating Granules, 2 lb Bottle - 22337A
    Leisure Time Spa 56 Dichlor Chlorinating Granules, 2 lb Bottle - 22337A
    SKU: 22337A
    $35
    $41
    In stock
  • Save 34%
    Jacks Magic After Shock Chlorine Reducer, 1 lb - JMAFTER16
    Jacks Magic After Shock Chlorine Reducer, 1 lb - JMAFTER16
    SKU: JMAFTER16
    $28.92
    $44
    In stock
  • Save 40%
    Suncoast Pool Season 1 lb Chlorinating Concentrate Bag - 47251290
    Suncoast Pool Season 1 lb Chlorinating Concentrate Bag - 47251290
    SKU: 47251290
    $14.99
    $25
    In stock
  • Save 46%
    Suncoast Pool Season 2 lb Chlorinating Concentrate Bottle - 47251300
    Suncoast Pool Season 2 lb Chlorinating Concentrate Bottle - 47251300
    SKU: 47251300
    $29
    $54
    In stock
  • Save 34%
    Leisure Time Spa Reserve Bromine Sanitizer, 32 oz Bottle, 12/Case | LT43
    Applied Biochemists Leisure Time Spa Reserve Bromine Sanitizer, 32 oz Bottle - LT43 - 45300A
    SKU: 45300A
    $31.40
    $48
    In stock