.mc-pdp{ /* Vent Covers Unlimited brand tokens (from theme CSS variables) */ --sage:#A7B5A6; /* --color-button-primary */ --deep:#4F594F; /* --color-header-mega-menu-title, darkened to clear AA contrast */ --line:#C6C7C2; /* --color-border */ --r:10px; /* --product-radius */ max-width:1040px;margin:0 auto;line-height:1.7 } .mc-lede{font-size:1.05em;margin:0 0 2.75rem;max-width:68ch} /* Features flow in balanced columns with a hairline between them. No containers, so uneven copy lengths never leave dead space. */ .mc-feats{column-count:1} .mc-f{break-inside:avoid;padding:0 0 2.5rem} .mc-f h3{margin:0 0 .55rem;font-size:.82em;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--deep)} .mc-f p{margin:0;font-size:.95em} .mc-sec{margin:3.25rem 0 1.5rem} .mc-sec h3{margin:0;font-size:1.25em;font-weight:600;color:var(--deep);letter-spacing:.02em} .mc-sub{font-size:1em;font-weight:600;color:var(--deep);margin:2rem 0 .75rem} .mc-trio{display:grid;grid-template-columns:1fr;gap:1.5rem;align-items:start} .mc-pdp figure{margin:0} .mc-pdp figure img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:var(--r);background:#fff} .mc-pdp figcaption{font-size:.85em;line-height:1.5;margin-top:.65rem;color:var(--deep)} .mc-cap-c{text-align:center} .mc-list{margin:0 0 1rem;padding-left:1.25rem} .mc-list li{margin-bottom:.5rem} .mc-list li:last-child{margin-bottom:0} /* Tables. On a phone the headers wrap at spaces (never mid-word) and the table scrolls sideways inside its wrapper. min-width stops the columns being squeezed to the point where the browser breaks words apart. */ .mc-tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-top:1.5rem;border:1px solid var(--line);border-radius:var(--r)} .mc-tbl{width:100%;min-width:480px;border-collapse:collapse;font-size:.93em} .mc-tbl th,.mc-tbl td{padding:.6rem .8rem;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap} .mc-tbl thead th{background:rgba(53,54,53,.035);font-weight:600;color:var(--deep);white-space:normal;vertical-align:bottom} .mc-tbl tbody tr:last-child th,.mc-tbl tbody tr:last-child td{border-bottom:0} .mc-tbl-note{font-size:.85em;line-height:1.5;margin:.75rem 0 0;color:var(--deep);max-width:68ch} .mc-specs{margin:1.5rem 0 0;padding:0;list-style:none;max-width:68ch} .mc-specs li{display:flex;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--line);font-size:.95em} .mc-specs li:last-child{border-bottom:0} .mc-specs .k{flex:0 0 38%;font-weight:600;color:var(--deep)} .mc-cta{margin-top:3.25rem;padding:1.25rem 1.4rem;border:1px solid var(--line);border-left:3px solid var(--sage);border-radius:var(--r);max-width:68ch} .mc-cta p{margin:0 0 .75rem;font-size:.95em} .mc-cta p:last-child{margin-bottom:0} @media (min-width:760px){ .mc-feats{column-count:2;column-gap:4rem;column-rule:1px solid var(--line)} .mc-trio{grid-template-columns:repeat(3,1fr);gap:1.5rem} } The Linus ProAir is a fully extruded aluminum linear slot diffuser for commercial HVAC — specified for hospitals, hotels, office buildouts, and high-end renovations. This is the quick-ship range: eighteen stocked sizes in one, two, and three-slot configurations, all in white powder coat, all in stock. The same unit works as a supply diffuser or a return air grille. ASHRAE 70-2023 Tested Performance-tested across all slot configurations, with published airflow data from 8 to 216 CFM/FT, throw distances up to 24 feet, and NC values as low as 15. Real numbers to design against, not marketing adjectives. Supply or Return Remove the pattern controllers and the same unit becomes a return air grille, on the same alignment pin system. One product and one aesthetic across supply and return in the same ceiling — no visual break where the function changes. 100% Extruded Aluminum No steel, no plastic, no stamping, no casting. North American-made extruded aluminum resists rust, corrosion, and moisture. At roughly 15% heavier than standard market alternatives, the difference is apparent the moment you handle it. Louvers Screwed, Not Clipped Every louver seats inside the body and is screwed in with brackets and flanges rather than surface-mounted or held by clips. That is what stops the rattling and loosening that shows up a few years into a high-use commercial install. 180° of Pattern Control Aerodynamic ice tong louvers adjust in the field for one-way, opposed, vertical, horizontal, or fully dampered airflow. Each louver is set independently, so a single run can throw in more than one direction. Continuous Runs One-end and zero-end configurations join with alignment pins for long, uninterrupted ceiling runs in open commercial spaces — supply and return sections included. Field Cuttable Trim up to 3" from each end on site — 6" of total adjustment — which usually absorbs whatever the framing turns out to be once the ceiling is open. Concealed Fasteners Screws are fully hidden. No visible hardware in the ceiling or wall plane — the seamless architectural finish specifiers expect, in a clean white powder coat. Which size is which slot count? The size selector lists width first. Width determines the slot count — a 2" unit is a single slot, 3.75" is two slots, 5.625" is three. Every width comes in all six lengths. 1 slot — order 2" wide 2 slots — order 3.75" wide 3 slots — order 5.625" wide Slots Order width Overall width Part number 1 slot 2" 3.25" LPALSD101 2 slots 3.75" 5" LPALSD102 3 slots 5.625" 6.75" LPALSD103 Overall width is the face of the diffuser, which overlaps the opening. Order by the first figure shown in the size selector. Lengths Six stocked lengths in every width: 12", 18", 24", 36", 48", and 72". Overall length is the ordered length plus 1-1/2" — a 48" unit measures 49-1/2" overall. The size selector shows both figures. Specifications Material100% extruded aluminum, North American made Slot configurations1, 2, or 3 slots (LPALSD101 / 102 / 103) Stocked lengths12", 18", 24", 36", 48", 72" ApplicationSupply diffuser or return air grille; wall or ceiling Airflow8 to 216 CFM/FT, tested to ASHRAE 70-2023 ThrowUp to 24 feet Noise criteriaNC as low as 15 Pattern controlAerodynamic ice tong louvers, up to 180°, each adjusted independently Louver mountingSeated inside the body, screwed with brackets and flanges Field cuttingUp to 3" per end, 6" total FastenersConcealed — no visible hardware FinishWhite powder coat Need something outside these eighteen sizes? The Linus ProAir custom program produces to 1/16 of an inch — any length, slot count, color, finish, or mud-in option. Lead times run from a 3-day rush to a standard 4-week build, and the most popular custom sizes are stocked for next-day dispatch. Order a made-to-length unit in 1 slot, 2 slots, 3 slots, or 4 slots — or contact the sales team to spec anything else.
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