John Guest - Polypropylene Plug Stopper Fitting - White

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.spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;} .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);} @media(max-width:640px){ .ro-wrap .ro-hero{padding:36px 24px 32px;} .ro-wrap .ro-section{padding:28px 20px;} .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;} .ro-wrap .benefits-strip{flex-direction:column;} .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);} } /* ── Nuclear override — force all text inside ro-wrap to be readable ── */ .ro-wrap p, .ro-wrap li, .ro-wrap td, .ro-wrap th, .ro-wrap .ro-section > p { font-size: 18px !important; line-height: 1.6 !important; } .ro-wrap .ro-section > p, .ro-wrap .ro-callout p, .ro-wrap .stage-body p, .ro-wrap .ro-feature-card p, .ro-wrap .schedule-card p, .ro-wrap .faucet-card p, .ro-wrap .spec-card .sc-note, .ro-wrap .pro-tip p { font-size: 18px !important; line-height: 1.6 !important; } .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; } .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; } .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; } .ro-wrap .ro-label, .ro-wrap .stage-tag, .ro-wrap .sc-label { font-size: 14px !important; } .ro-wrap .ro-title { font-size: 24px !important; } .ro-wrap .interval { font-size: 22px !important; } .ro-wrap .stage-num { font-size: 16px !important; } .ro-wrap .ro-eyebrow { font-size: 14px !important; } .ro-wrap .ro-badge { font-size: 15px !important; } The John Guest Polypropylene Plug Stopper Fitting is a UK-manufactured push-to-connect end cap designed to terminate water lines, air lines, and CO2 applications quickly and reliably. Engineered from food-grade polypropylene, this white plug fitting uses a grip-and-seal collet system for tool-free installation and removal. TECHNICAL DETAILS Specifications Manufacturer John Guest Speedfit Material Polypropylene with food-grade nitrile O-ring Connection Type Push-to-connect collet system Color White Country of Manufacture United Kingdom Function End cap / line termination Compatible Media Potable water, foodstuff, air, inert gases, CO2, vacuum COMPATIBILITY & APPLICATIONS Use Cases This John Guest plug stopper is ideal for terminating unused outlets on manifolds, capping off filter housings during maintenance, or sealing spare connections on reverse osmosis systems. The food-grade construction makes it suitable for potable water, beverage lines, and refrigerator hookups. Also compatible with pneumatic systems, CO2 carbonation lines, and vacuum applications. To install, simply push the fitting fully onto the tubing until seated. To remove, push the collet toward the body and pull the tubing free. 💧 Keep a few John Guest plug fittings on hand during filter changes or system upgrades to prevent leaks from open ports while you work. Show more