{"product_id":"tusa-rs-681-regulator","title":"Tusa RS-681 Regulator","description":"\u003cp class=\"taller\" id=\"ctl29_shortdesc\"\u003eThe RS-681 is TUSA's latest regulator that delivers superior performance and build quality in a compact lightweight design.  The R-600 paired with the newly developed S-81 second stage further pushes the regulator engineering and performance envelope.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 class=\"heading-primary\"\u003eFEATURES\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eFirst stage (R-600)\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-compact balanced diaphragm first stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEK-600 cold water kit available for temperatures below 50°F\/10°C\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDIN-R600 conversion kit available (300bar\/4350psi)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 HP and 4 LP ports\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSecond stage (S-81)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eElliptical low-profile case design\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS.E.A. – Sequential Exhaust Assist technology (Pat P.)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVenturi adjustment lever\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in moisture exchange plate\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAttached to MIFLEX® hose for exceptional flexibility\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBreathing Resistance Adjustment Control\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOrtho-consciously designed mouthpiece\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEligible for TUSA CARE Free Parts for Life Program - USA Only\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"heading-primary\"\u003e\u003c\/h4\u003e\n\u003ch4 id=\"ctl29_techheader\" class=\"heading-primary\"\u003eTECHNOLOGY\u003c\/h4\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Ceramic-Moisture-Plate.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch5\u003eTEFLON COATED PLATE TEST\u003c\/h5\u003e\n\u003cdiv\u003eThe Teflon Coated Plate prevents “dry mouth.” Condensation forms on the brass plate adding moisture to the dry air released from scuba cylinders.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Click-Spring-Adjustment.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eCLICK SPRING ADJUSTMENT\u003c\/h5\u003e\n\u003cdiv\u003eThe Click Spring Adjustment feature is exclusive to TUSA. It is a five (5)-position adjustment knob designed to better control breathing resistance.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Cold-Water-Ready.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eCOLD WATER READY\u003c\/h5\u003e\n\u003cdiv\u003eThe Cold Water Ready feature enables the diver to use the regulator in water temperatures below 50° F \/ 10° C.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Environmentally-Sealed-1st-Stage.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eENVIRONMENTALLY SEALED 1ST STAGE\u003c\/h5\u003e\n\u003cdiv\u003eThe use of a secondary diaphragm and piston sealing the 1st stage preventing contamination or freezing when the regulator is submersed in contaminated or freezing water.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Ortho-Conscious-Mouth-Piece.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eORTHO-CONSCIOUS MOUTH PIECE\u003c\/h5\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Ortho-Conscious Mouth Piece feature prevents jaw fatigue. The ridges and flexible material allow the diver to have more control of the mouth piece and reduces tension in the jaw.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Sequence-Exhaust-Assist-System.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eSEQUENCE EXHAUST ASSIST SYSTEM\u003c\/h5\u003e\n\u003cdiv\u003eThe Sequence Exhaust Assist System gives the diver less resistance when exhaling due to its unique double exhaust design. The diver experiences smooth breathing cycles reducing air consumption and fatigue.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/www.outdoorsportsexpress.com\/cdn\/shop\/files\/imagefly.jpg\" data-original=\"https:\/\/tusa.com\/imagefly.aspx?p=\/contentimages\/Venturi-Flow-Adjustment.jpg\u0026amp;w=60\u0026amp;h=60\" data-files=\"imagefly.jpg\" alt=\"Tusa RS-681 Regulator\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch5\u003eVENTURI FLOW ADJUSTMENT\u003c\/h5\u003e\n\u003cdiv\u003eThe Venturi Flow Adjustment allows for ease of breathing by controlling the direction of air through the mouthpiece.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TUSA","offers":[{"title":"Default Title","offer_id":52773762302271,"sku":"RS-681U-BK","price":719.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/5307\/1935\/files\/tusa-rs-681-regulator-50014142-596.jpg?v=1776191185","url":"https:\/\/www.stonesports.com\/products\/tusa-rs-681-regulator","provider":"Stone Sports","version":"1.0","type":"link"}